REGIONAL, H. C. (1973). Traditional Buildings Of Indonesia Batak Toba. Building Research Institute.
Chicago-referens (17:e uppl.)REGIONAL, Houshing Centre. Traditional Buildings Of Indonesia Batak Toba. Building Research Institute, 1973.
MLA-referens (8:e uppl.)REGIONAL, Houshing Centre. Traditional Buildings Of Indonesia Batak Toba. Building Research Institute, 1973.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.