Sihotang, Siti Fatimah, and Zuhri. “Loglinear Model Formation Using Hierachial Backward Method”. Journal of Research in Mathematics Trends and Technology 2, no. 1 (February 24, 2020): 28-36. Accessed November 22, 2024. https://talenta.usu.ac.id/jormtt/article/view/3754.