Heru, T. (1985). Lingkungan Perusahaan. n.d.
Chicago Style (17th ed.) CitationHeru, Tri. Lingkungan Perusahaan. n.d, 1985.
MLA (8th ed.) CitationHeru, Tri. Lingkungan Perusahaan. n.d, 1985.
Warning: These citations may not always be 100% accurate.