K. F. Kodrat, S. Sinulingga, H. Napitupulu, and R. A. Hadiguna, “Supply Chain Performance Measurement Model of Passion Fruit Agro-Industry for Sustainable Micro, Small, and Medium Enterprises with System Dynamics in North Sumatra Province”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 9, no. 6, pp. 1885–1891, Dec. 2019.