Laksono, Bagaskoro Cahyo, and Ika Yuni Wulansari. “Estimating Customer Lifetime Value in the E-Commerce Industry Using Multivariate Analysis”. Proceedings of The International Conference on Data Science and Official Statistics 2021, no. 1 (January 4, 2022): 507–518. Accessed May 2, 2024. https://proceedings.stis.ac.id/icdsos/article/view/161.