M. S. Shaharudin, S. Suhaimi, Y. Fernando, W. A. F. Wan Husain, and . Suparman, “Improvement of Green Procurement Performance in the Global Supply Chain: Evidence from Enterprise Resource Planning and Social Network Analysis”, Int. J. Indus. Mgmt, vol. 10, no. 1, pp. 173–194, Mar. 2021.