(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.
Lua i Stíl Chicago (17ú heag.)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.
Lua MLA (8ú heag.)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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.