Pella, Muh. Darmin Ahmad, Ujang Sumarwan, Arief Daryanto, and Kirbrandoko Kirbrandoko. 2013. “Factors Affecting Poor Strategy Implementation”. Gadjah Mada International Journal of Business 15 (2), 183-204. https://dev.journal.ugm.ac.id/v3/gamaijb/article/view/15390.