Ningrum, N. R., Munadi, E. and Widayanti, T. (2018) “ANALISIS EFISIENSI SISTEM TATA NIAGA GULA DI INDONESIA”, Buletin Ilmiah Litbang Perdagangan, 1(3), pp. 3–28. Available at: https://jurnal.kemendag.go.id/index.php/bilp/article/view/301 (Accessed: 8 October 2025).