TGT, D. (1983). Tata Cara Kerja Edisi 4.
Chicago Style (17th ed.) CitationTGT, Direktorat. Tata Cara Kerja Edisi 4. 1983.
MLA (8th ed.) CitationTGT, Direktorat. Tata Cara Kerja Edisi 4. 1983.
Warning: These citations may not always be 100% accurate.