Umar, H. (1997). Studi kelayakan bisnis: Manajemen, metode & kasus. Gramedia.
Chicago Style (17th ed.) CitationUmar, Husein. Studi Kelayakan Bisnis: Manajemen, Metode & Kasus. Gramedia, 1997.
MLA (8th ed.) CitationUmar, Husein. Studi Kelayakan Bisnis: Manajemen, Metode & Kasus. Gramedia, 1997.
Warning: These citations may not always be 100% accurate.