I Putu Susila Handika and I Kadek Susila Satwika (2023) “Enhancing Sales Forecasting Accuracy Through Optimized Holt-Winters Exponential Smoothing with Modified Improved Particle Swarm Optimization”, Jurnal Nasional Pendidikan Teknik Informatika : JANAPATI, 12(2), pp. 203–212. doi: 10.23887/janapati.v12i2.65462.