Saudi JH, Kalfin K, Diantini NLS. Insurance Premium Determination Model Using The Cobb-Douglas Regression Method On Shallot Production. Mathline [Internet]. 2025 Nov. 30 [cited 2025 Dec. 24];10(4):1011-28. Available from: https://mathline.unwir.ac.id/index.php/Mathline/article/view/1051