Elidjen, E., Tanun, S., Saputro, A. D., & Simolang, N. L. (2011). Sistem Pengiriman Barang Berbasis Web pada PT Prabu Expressindo. ComTech: Computer, Mathematics and Engineering Applications, 2(2), 859-866. https://doi.org/10.21512/comtech.v2i2.2836