2021. Website Based Information System for Sales and Purchasing of Traditional Fish for Kalanganyar Residents: Sistem Informasi Penjualan dan Pembelian Ikan Tradisional Berbasis Website Pada Warga Kalanganyar. Procedia of Engineering and Life Science. 1, 2 (July 2021). DOI:https://doi.org/10.21070/pels.v1i2.953.