REGIONAL, H. C. (1973). Traditional Building Of Indonesia. Batak Karo. Building Research Institute.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रREGIONAL, Houshing Centre. Traditional Building Of Indonesia. Batak Karo. Building Research Institute, 1973.
एमएलए (8वां संस्करण) प्रशस्ति पत्रREGIONAL, Houshing Centre. Traditional Building Of Indonesia. Batak Karo. Building Research Institute, 1973.
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