| Kitab undang-undang Tanjung Tanah: naskah Melayu yang tertua U Kozok Yayasan Obor Indonesia, 2006 | 143 | 2006 |
| The Batak: peoples of the island of Sumatra A Sibeth, U Kozok, JR Ginting (No Title), 1991 | 93 | 1991 |
| Surat Batak: sejarah perkembangan tulisan Batak berikut pedoman menulis aksara Batak dan cap Si Singamangaraja XII U Kozok (No Title), 2009 | 86 | 2009 |
| Warisan leluhur: sastra lama dan aksara Batak U Kozok Kepustakaan Populer Gramedia, 1999 | 77 | 1999 |
| A 14th century Malay code of laws: The Nitisarasamuccaya U Kozok Institute of Southeast Asian Studies, 2015 | 39 | 2015 |
| Utusan damai di kemelut perang: peran zending dalam Perang Toba: berdasarkan laporan LI Nommensen dan penginjil RMG lain U Kozok (No Title), 2010 | 31 | 2010 |
| A 14 th Century Malay Manuscript from Kerinci U Kozok Archipel 67 (1), 37-55, 2004 | 27 | 2004 |
| The Batak: Peoples of the island of Sumatra: Living with ancestors A Sibeth, U Kozok, JR Ginting (No Title), 1991 | 25 | 1991 |
| The Tanjung Tanah code of law: The oldest extant Malay manuscript U Kozok St Catharine's College, 2004 | 23 | 2004 |
| On writing the not-to-be-read: literature and literacy in a pre-colonial'tribal'society U Kozok Bijdragen tot de taal-, land-en volkenkunde 156 (1), 33-55, 2000 | 21 | 2000 |
| Bark, bones, and bamboo: Batak traditions of Sumatra U Kozok Kumar and McGlynn (eds), 231-246, 1996 | 16 | 1996 |
| Ādityawarman: Three Inscriptions of the Sumatran ‘King of all Supreme Kings’ translated and annotated from H. Kern and FDK Bosch U Kozok, E van Reijn Indonesia and the Malay World 38 (110), 135-158, 2010 | 11 | 2010 |
| Sanskrit in a distant land: The Sanskritized sections TM Hunter, U Kozok U. Kozok (forthcoming). The Tanjung Tanah codes of law, 2015 | 10 | 2015 |
| Mit den Ahnen leben, Batak, Menschen in Indonesien A Sibeth, U Kozok, JR Ginting (No Title), 1990 | 9 | 1990 |
| Lamentations of the Karo‐Batak, North Sumatra U Kozok Indonesia Circle 21 (59-60), 57-61, 1992 | 6 | 1992 |
| Manuskrip Melayu abad ke-14 dari Kerinci U Kozok Jurnal Terjemahan Alam & Tamadun Melayu 3 (2), 85-104, 2012 | 5 | 2012 |
| Kitab Undang-undang Tanjung Tanah: Naskah Melayu Tertua U Kozok Jakarta, Yanassa and Yayasan Obor Indonesia, 2006 | 5 | 2006 |
| Proposal for encoding the Batak script in the UCS M Everson, U Kozok | 4 | 2008 |
| The seals of the last Singmangaraja U Kozok Indonesia and the Malay World 28 (82), 254-279, 2000 | 4 | 2000 |
| Die Klageliedtradition der Batak Nordsumatras U Kozok The Lament Tradition of the Batak of North Sumatra 2, 1994 | 4 | 1994 |
