Purwanto, H., Yuniana, D., Habiby, M.E. and Hermawan, H. 2021. Penerapan Electronic Costumer Relationship Management Penjualan Berbasis Web. INTERNAL (Information System Journal). 4, 2 (Dec. 2021), 71–83. DOI:https://doi.org/10.32627/internal.v4i2.261.