Sukmana. (2001). Asal-Usul danau Toba. Putra Setia.
Chicago Style CitationSukmana. Asal-Usul Danau Toba. Putra Setia, 2001.
MLA CitationSukmana. Asal-Usul Danau Toba. Putra Setia, 2001.
Warning: These citations may not always be 100% accurate.
APA Citation