Yusuf & Kathur Suhardi. (1991). Motivasi berkeluarga. Pustaka al-Kautsar.
Chicago Style (17th ed.) CitationYusuf and Kathur Suhardi. Motivasi Berkeluarga. Yogyakarta: Pustaka al-Kautsar, 1991.
MLA (8th ed.) CitationYusuf and Kathur Suhardi. Motivasi Berkeluarga. Pustaka al-Kautsar, 1991.
Warning: These citations may not always be 100% accurate.