APA Citation

Muhammad, S. (1998). Muhammadiyah Menyongsong Abad 21. Putaka SM.

Chicago Style Citation

Muhammad, Sobari. Muhammadiyah Menyongsong Abad 21. Putaka SM, 1998.

MLA Citation

Muhammad, Sobari. Muhammadiyah Menyongsong Abad 21. Putaka SM, 1998.

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