APA aipamena

SIGIT, S. (1979). Analisa break-even. FE-UGM.

Chicago Style aipamena

SIGIT, Soehardi. Analisa Break-even. Yogyakarta: FE-UGM, 1979.

MLA aipamena

SIGIT, Soehardi. Analisa Break-even. FE-UGM, 1979.