Roni, J. K. (1987). Jadilah kuat. Yayasan Andi.
Chicago Style (17th ed.) CitationRoni, Jusuf K.A.M. Jadilah Kuat. Yayasan Andi, 1987.
MLA (8th ed.) CitationRoni, Jusuf K.A.M. Jadilah Kuat. Yayasan Andi, 1987.
Warning: These citations may not always be 100% accurate.