INDONESIA, P. D. B. (1989). Conglomeration Indonesia: A profile of Indonesian largest business groupings featuring conglomeration presence in Indonesia, Volume 2 1989. Pusat Data Business Indonesia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रINDONESIA, PUSAT DATA BISNIS. Conglomeration Indonesia: A Profile of Indonesian Largest Business Groupings Featuring Conglomeration Presence in Indonesia, Volume 2 1989. Pusat Data Business Indonesia, 1989.
एमएलए (8वां संस्करण) प्रशस्ति पत्रINDONESIA, PUSAT DATA BISNIS. Conglomeration Indonesia: A Profile of Indonesian Largest Business Groupings Featuring Conglomeration Presence in Indonesia, Volume 2 1989. Pusat Data Business Indonesia, 1989.
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