by Prof.Dr. H.M. Yunan Yusuf (ed.) $28.00
by Gunawan Widjaja & Kartini Mulyadi $7.00
by Edwin A. Hoover Colette $9.00
by Drs. Mardalis $6.00
by FMIPA Universitas Indonesia $6.00
by Akhmad Taufik, M.Pd., dkk $11.00
by Rivai, Harrizul $9.00
by J. Donald Walters $3.00
by $6.00
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