Sha & Ridz. (2011). 21 rahsia fasih berbahasa Inggeris. PTS Millennia.
Chicago Style (17th ed.) CitationSha and Ridz. 21 Rahsia Fasih Berbahasa Inggeris. Batu Caves, Selangor: PTS Millennia, 2011.
MLA (8th ed.) CitationSha and Ridz. 21 Rahsia Fasih Berbahasa Inggeris. PTS Millennia, 2011.
Warning: These citations may not always be 100% accurate.