Sobary, M. (1999). Piety and Economics Behavior A Study of The Informal Sector in Surabya, West Java = Kesalehan dan Tingkah Laku Ekonomi. Yayasan Bentang Budaya.
Trích dẫn kiểu ChicagoSobary, Mohamad. Piety and Economics Behavior A Study of The Informal Sector in Surabya, West Java = Kesalehan Dan Tingkah Laku Ekonomi. Yayasan Bentang Budaya, 1999.
Trích dẫn MLASobary, Mohamad. Piety and Economics Behavior A Study of The Informal Sector in Surabya, West Java = Kesalehan Dan Tingkah Laku Ekonomi. Yayasan Bentang Budaya, 1999.
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