AHMAD Farid bin Yaacob @ Ali. (1990). Kajian awal penurunan kecekapan. UTM.
Chicago Style (17th ed.) CitationAHMAD Farid bin Yaacob @ Ali. Kajian Awal Penurunan Kecekapan. K.L: UTM, 1990.
MLA (9th ed.) CitationAHMAD Farid bin Yaacob @ Ali. Kajian Awal Penurunan Kecekapan. UTM, 1990.
Warning: These citations may not always be 100% accurate.