HARTANTI, E., & SUGIARTO, Y. (1984). Dasar-dasar riset operasional 1. BP UNDIP Semarang.
Chicago-čujuhus (17. p.)HARTANTI, Eni, juo Y. SUGIARTO. Dasar-dasar Riset Operasional 1. Semarang: BP UNDIP Semarang, 1984.
MLA-čujuhus (9. p.)HARTANTI, Eni, juo Y. SUGIARTO. Dasar-dasar Riset Operasional 1. BP UNDIP Semarang, 1984.
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