Priyanto, Sony Heru. “A Structural Model of Business Performance: An Empirical Study on Tobacco Farmers”. Gadjah Mada International Journal of Business 8, no. 1 (January 12, 2006): 103-134. Accessed November 26, 2024. https://jurnal.ugm.ac.id/v3/gamaijb/article/view/14870.