Meei Hao H, Jaafar A, Hooi Ching B. Goal-Directed Approach and Design Principle Approach: a Comparative Study. IJET [Internet]. 2018 Dec. 9 [cited 2024 Nov. 22];7(4.31):191-7. Available from: https://sciencepubco.com/index.php/ijet/article/view/23364