(2012). Journal of Profesional Issues in Engineering Education & Pratice Volume 138 January No. 01 s/d Oktober No. 04 th. 2012. ASCE American Society of Civil Engineers.
Chicago-referens (17:e uppl.)Journal of Profesional Issues in Engineering Education & Pratice Volume 138 January No. 01 S/d Oktober No. 04 Th. 2012. ASCE American Society of Civil Engineers, 2012.
MLA-referens (8:e uppl.)Journal of Profesional Issues in Engineering Education & Pratice Volume 138 January No. 01 S/d Oktober No. 04 Th. 2012. ASCE American Society of Civil Engineers, 2012.
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