'Ulwan, Zainal Abidin, & Tamhid. (1988). Masalah taqdir. Thinker's Library.
Chicago Style (17th ed.) Citation'Ulwan, Zainal Abidin, and Tamhid. Masalah Taqdir. Batu Caves: Thinker's Library, 1988.
MLA (8th ed.) Citation'Ulwan, et al. Masalah Taqdir. Thinker's Library, 1988.
Warning: These citations may not always be 100% accurate.