Simangunsong, Elliot. “Analysing Parallel Interaction in Supply Chains: A Supply Chain Network Perspective”. International Research Journal of Business Studies 6, no. 3 (December 1, 2013): 171–184. Accessed January 22, 2026. https://irjbs.prasetiyamulya.ac.id/index.php/jurnalirjbs/article/view/784.