Leonardo, G. (2003). Membina ketahanan diri. Thinker's Library Sdn. Bhd..
Chicago Style (17th ed.) CitationLeonardo, George. Membina Ketahanan Diri. Selangor: Thinker's Library Sdn. Bhd., 2003.
MLA (9th ed.) CitationLeonardo, George. Membina Ketahanan Diri. Thinker's Library Sdn. Bhd., 2003.
Warning: These citations may not always be 100% accurate.