INDONESIA, P. D. B. (1988). Construction Indonesia: A profile of Indonesian construction industry featuring contractors, and real estate companies, Volume 1 1988. Pusat Data Business Indonesia.
Chicago-referens (17:e uppl.)INDONESIA, PUSAT DATA BUSINESS. Construction Indonesia: A Profile of Indonesian Construction Industry Featuring Contractors, and Real Estate Companies, Volume 1 1988. Pusat Data Business Indonesia, 1988.
MLA-referens (8:e uppl.)INDONESIA, PUSAT DATA BUSINESS. Construction Indonesia: A Profile of Indonesian Construction Industry Featuring Contractors, and Real Estate Companies, Volume 1 1988. Pusat Data Business Indonesia, 1988.
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