REGIONAL, H. C. (1973). Traditional Buildings Of Indonesia Batak Toba. Building Research Institute.
Chicago-viite (17. p.)REGIONAL, Houshing Centre. Traditional Buildings Of Indonesia Batak Toba. Building Research Institute, 1973.
MLA-viite (8. p.)REGIONAL, Houshing Centre. Traditional Buildings Of Indonesia Batak Toba. Building Research Institute, 1973.
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