Nano-chitosan Spray as a Preservative and Food Security of Fishery Products in The Middle of the Covid-19 Pandemic. D Saputra, FR Ula, AB Nur Fadhila, YY Sijabat, AA Romadoni, S Windarto Scientific Journal of Fisheries & Marine/Jurnal Ilmiah Perikanan dan …, 2022 | 4 | 2022 |