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Gaya APA

Yunus, M. (2007). Logika: Suatu Pengantar . Yogyakarta: Jogyakarta: Graha Ilmu.

Gaya MLA

Yunus, Mahmud. "Logika: Suatu Pengantar". Yogyakarta: Jogyakarta: Graha Ilmu, 2007. Text.