-. (1978). Yayasan Idayu suatu pengabdian: 28 Oktober 1966-1978. Yayasan Idayu.
Chicago Style (17th ed.) Citation-. Yayasan Idayu Suatu Pengabdian: 28 Oktober 1966-1978. Jakarta: Yayasan Idayu, 1978.
MLA (9th ed.) Citation-. Yayasan Idayu Suatu Pengabdian: 28 Oktober 1966-1978. Yayasan Idayu, 1978.
Warning: These citations may not always be 100% accurate.