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 citiranjeBANGS, David H. Pedoman Perencanaan Usaha(the Business Planning Guide). Erlangga, 1995.
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