Sugiardi,Michael S. (1991). Ventur Publisher: Tingkat lanjutan / Michael Sugiardi. Gramedia.
Chicago Style (17th ed.) CitationSugiardi,Michael S. Ventur Publisher: Tingkat Lanjutan / Michael Sugiardi. Gramedia, 1991.
MLA (8th ed.) CitationSugiardi,Michael S. Ventur Publisher: Tingkat Lanjutan / Michael Sugiardi. Gramedia, 1991.
Warning: These citations may not always be 100% accurate.