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Mustofa, Agus. (). Tafakur . Surabaya: Padma Press.

Gaya Chicago

Mustofa, Agus. Tafakur. Surabaya: Padma Press, . .

Gaya MLA

Mustofa, Agus. Tafakur. Surabaya: Padma Press, . .

Gaya Turabian

Mustofa, Agus. Tafakur. Surabaya: Padma Press, . .