APA (7th ed.) Citation

Leonard, G., Adiwiyoto, A., & Firdhaus Md. Yatim. (1997). Membina ketahanan diri. Thinker's Library.

Chicago Style (17th ed.) Citation

Leonard, George, Anton Adiwiyoto, and Firdhaus Md. Yatim. Membina Ketahanan Diri. Batu Caves, Selangor: Thinker's Library, 1997.

MLA (9th ed.) Citation

Leonard, George, et al. Membina Ketahanan Diri. Thinker's Library, 1997.

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