Siradanart Thanangoonwong และ Bovornlak Oonkhanond. (2011) Task analysis system for Department of Chemical Engineering Faculty of Engineering, Mahidol University. Mahidol University:ม.ป.ท.Siradanart Thanangoonwong และ Bovornlak Oonkhanond. 2011. Task analysis system for Department of Chemical Engineering Faculty of Engineering, Mahidol University. ม.ป.ท.:Mahidol University;Siradanart Thanangoonwong และ Bovornlak Oonkhanond. Task analysis system for Department of Chemical Engineering Faculty of Engineering, Mahidol University. ม.ป.ท.:Mahidol University, 2011. Print.