The Charter of Kapal
- 23 pages : illustrations krt. ; 21 cm
- Aspek-aspek arkeologi Indonesia = Aspects of Indonesian archaeology .
- Aspek-aspek arkeologi Indonesia = Aspects of Indonesian archaeology .
No. 2, 1977. Paper presented at the 6th. Comference of the International Association of Historians of Asia, Yogyakarta, 26th - 30th. Aug. 1974