Robiah Kulop Hamzah. (2001). Penampilan diri berkualiti. PTS Pub.
Chicago Style (17th ed.) CitationRobiah Kulop Hamzah. Penampilan Diri Berkualiti. Kuala Lumpur: PTS Pub, 2001.
MLA (8th ed.) CitationRobiah Kulop Hamzah. Penampilan Diri Berkualiti. PTS Pub, 2001.
Warning: These citations may not always be 100% accurate.