| Short message service (SMS) language and written language skills: educators’ perspectives S Geertsema, C Hyman, C Van Deventer South African Journal of Education 31 (4), 475-487, 2011 | 71 | 2011 |
| The effect of hydration on the voice quality of future professional vocal performers L van Wyk, M Cloete, D Hattingh, J van der Linde, S Geertsema Journal of Voice 31 (1), 111. e29-111. e36, 2017 | 50 | 2017 |
| Phonemic awareness of English second language learners M Le Roux, S Geertsema, H Jordaan, D Prinsloo South African Journal of Communication Disorders 64 (1), 1-9, 2017 | 33 | 2017 |
| An investigation into the early literacy skills of English second language learners in South Africa A Manten, M le Roux, S Geertsema, M Graham Australasian Journal of Early Childhood 45 (2), 142-154, 2020 | 22 | 2020 |
| A retrospective case report on demographic changes of learners at a school for children with Autism Spectrum Disorder in the Gauteng Province S Van Biljon, AM Kritzinger, S Geertsema University of Johannesburg, 2015 | 17 | 2015 |
| A retrospective case report on demographic changes of learners at a school for children with Autism Spectrum Disorders in the Gauteng Province S Van Biljon, A Kritzinger, S Geertsema South African Journal of Childhood Education 5 (1), 01-26, 2015 | 13 | 2015 |
| Phonological awareness and speech perception: Skills of Grade 1 English second language learners CJ Eslick, M Le Roux, L Pottas, S Geertsema Reading & Writing-Journal of the Reading Association of South Africa 11 (1 …, 2020 | 10 | 2020 |
| Verbal working memory in second language reading comprehension: a correlational study MJ Pretorius, M Le Roux, S Geertsema Communication Disorders Quarterly 43 (4), 234-245, 2022 | 8 | 2022 |
| Speech-language therapy for adolescents with written-language difficulties: The South African context D Erasmus, L Schutte, M Van der Merwe, S Geertsema South African Speech-Language-Hearing Association, 2013 | 8 | 2013 |
| Phonological awareness and learning to read in Afrikaans: The role of working memory M Scheepers, S Geertsema, M Le Roux, M Graham South African Journal of Childhood Education 11 (1), 1-11, 2021 | 7 | 2021 |
| The effect of blocked versus serial practice in the treatment of developmental motor-based articulation disorder S Geertsema, M le Roux Communication Disorders Quarterly 41 (4), 199-213, 2020 | 7 | 2020 |
| The Effect of Pedagogical Translanguaging on Foundation Phase Classrooms in a South African Private School JC Schoeman, S Geertsema, M Le Roux, L Pottas Journal of Language, Identity & Education, 1-18, 2023 | 5 | 2023 |
| Professional development for teachers of Grade 1 second language learners JC Schoeman, S Geertsema, M Le Roux, L Pottas, MA Graham The Independent Journal of Teaching and Learning 17 (2), 147-181, 2022 | 4 | 2022 |
| Managing developmental dyslexia: Practices of speechlanguage therapists in South Africa S Geertsema, M Le Roux Asia-Pacific journal of research in early childhood education 14 (1), 71-98, 2020 | 4 | 2020 |
| Developmental dyslexia in private schools in South Africa: Educators’ perspectives S Geertsema, M Le Roux, A Bhorat, A Carrim, M Valley South African Journal of Education 42 (4), 2022 | 3 | 2022 |
| Investigating the prevalence and comorbidity of attention deficit hyperactivity disorder and developmental dyslexia in learners in a South African practice S Stark, S Geertsema, M Le Roux, E Bothma South African Journal of Childhood Education 12 (1), 1-10, 2022 | 3 | 2022 |
| Parental perspectives on their Grade 4 children with reading and writing difficulties in mainstream government schools in Mauritius S Veerabudren, AM Kritzinger, MA Graham, S Geertsema, MM Le Roux Macrothink Institute, 2021 | 3 | 2021 |
| Phonological awareness and speech perception in noise: Skills of English second language learners in grade 1 CJ Eslick PQDT-Global, 2018 | 3 | 2018 |
| Communication characteristics of young children with HIV in South Africa as reported by some physicians M Hattam, B Louw, S Geertsema African Journal of AIDS Research 13 (4), 371-382, 2014 | 3 | 2014 |
| Engels addisionele taalleerders: Ondersteuning vir fonologiese bewustheidsuitvalle S Geertsema, M Le Roux Tydskrif vir Geesteswetenskappe 54 (1), 96-110, 2014 | 3 | 2014 |
