Sou'yb, H. (2001). LOGIKA KAIDAH BERPIKIR SECARA TEPAT. PT AL HUSNA ZIKRA.
Chicago Style (17th ed.) CitationSou'yb, H.M.Joesoef. LOGIKA KAIDAH BERPIKIR SECARA TEPAT. PT AL HUSNA ZIKRA, 2001.
MLA (8th ed.) CitationSou'yb, H.M.Joesoef. LOGIKA KAIDAH BERPIKIR SECARA TEPAT. PT AL HUSNA ZIKRA, 2001.
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