Blackledge, G. .. (1992). Amalan kerja konkrit. Universiti teknologi malaysia.
Chicago Style (17th ed.) CitationBlackledge, G .F. Amalan Kerja Konkrit. Johor: Universiti teknologi malaysia, 1992.
MLA (9th ed.) CitationBlackledge, G .F. Amalan Kerja Konkrit. Universiti teknologi malaysia, 1992.
Warning: These citations may not always be 100% accurate.