APA Citation

Powell, J., & Widyamartaya, A. (1992). Laku hidup bahagia. Yogyakarta: Kanisius.

Chicago Style Citation

Powell, John, and A. Widyamartaya. Laku Hidup Bahagia. Yogyakarta: Kanisius, 1992.

MLA Citation

Powell, John, and A. Widyamartaya. Laku Hidup Bahagia. Yogyakarta: Kanisius, 1992.

Warning: These citations may not always be 100% accurate.