(1975). Sayap-sayap merpati: Percik-percik pemikiran. Wirofens Group.
Chicago Style (17th ed.) CitationSayap-sayap Merpati: Percik-percik Pemikiran. Wirofens Group, 1975.
MLA (8th ed.) CitationSayap-sayap Merpati: Percik-percik Pemikiran. Wirofens Group, 1975.
Warning: These citations may not always be 100% accurate.