Pella, M. D. A., U. Sumarwan, A. Daryanto, and K. Kirbrandoko. “Factors Affecting Poor Strategy Implementation”. Gadjah Mada International Journal of Business, Vol. 15, no. 2, June 2013, pp. 183-04, https://dev.journal.ugm.ac.id/v3/gamaijb/article/view/15390.