BANGS, D. H. (1995). Pedoman Perencanaan Usaha(the Business Planning Guide). Erlangga.
Chicago Style (17th ed.) CitationBANGS, David H. Pedoman Perencanaan Usaha(the Business Planning Guide). Erlangga, 1995.
MLA (8th ed.) CitationBANGS, David H. Pedoman Perencanaan Usaha(the Business Planning Guide). Erlangga, 1995.
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