(1989). Seminar Paleontropologi Indonesia Yogyakarta, 9-11 September 1989: Early usages of rockshelters and caves on the eastern coast of nggela pile, Central Island Province/ Possible worth of archaelogy to the Tolai. Panitia Nasional Peringatan 100 Thn Paleontropologi Indonesia.
Chicago Style (17th ed.) CitationSeminar Paleontropologi Indonesia Yogyakarta, 9-11 September 1989: Early Usages of Rockshelters and Caves on the Eastern Coast of Nggela Pile, Central Island Province/ Possible Worth of Archaelogy to the Tolai. Panitia Nasional Peringatan 100 Thn Paleontropologi Indonesia, 1989.
MLA (8th ed.) CitationSeminar Paleontropologi Indonesia Yogyakarta, 9-11 September 1989: Early Usages of Rockshelters and Caves on the Eastern Coast of Nggela Pile, Central Island Province/ Possible Worth of Archaelogy to the Tolai. Panitia Nasional Peringatan 100 Thn Paleontropologi Indonesia, 1989.