Sridharan, Ramaswami, and Togar M Simatupang. “Managerial Views of Supply Chain Collaboration: An Empirical Study”. Gadjah Mada International Journal of Business 11, no. 2 (May 12, 2009): 253 - 273. Accessed November 6, 2024. https://dev.journal.ugm.ac.id/v3/gamaijb/article/view/15040.