Aini, Aini Nur, Rani Purbaningtyas, and R Dimas Adityo. 2017. “Forecasting Sales 3 Kg Lpg Using Single Exponential Smoothing Method”. JEECS (Journal of Electrical Engineering and Computer Sciences) 2 (2):281-86. https://doi.org/10.54732/jeecs.v2i2.153.