Gaya APA

Natawidjaja, R. (2002). Scales for study program assessment & skala penelitian kinerja program studi (1 st English edition). Jakarta: Ministry of national educatiion national accraditation board for higher education.

Gaya MLA

Natawidjaja, Rochman. "Scales for study program assessment & skala penelitian kinerja program studi". 1 st English edition Jakarta: Ministry of national educatiion national accraditation board for higher education, 2002. Text.