PENGEMBANGAN SISTEM INFORMASI ANALISIS PENJUALAN BERBASIS WEB DENGAN PENDEKATAN SDLC SERTA PENERAPAN ALGORITMA SEARCHING DAN MOVING AVERAGE FORECASTING(STUDI KASUS: PT XIN YUAN INDUSTRY). JSSR [Internet]. 2026 Aug. 11 [cited 2026 Aug. 15];9(4):5997 – 6006. Available from: https://jurnal.goretanpena.com/index.php/JSSR/article/view/6957