SIGIT, S. (1976). Azas-azas accounting. UGM Press.
Lua i Stíl Chicago (17ú heag.)SIGIT, Soehardi. Azas-azas Accounting. Yogyakarta: UGM Press, 1976.
Lua MLA (9ú heag.)SIGIT, Soehardi. Azas-azas Accounting. UGM Press, 1976.
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