Vivianti, V. and Aswi, A. 2026. A Comparative Analysis of Interval Determination Using Sturges’ Rule and the Average-Based Method in Chen’s Fuzzy Time Series Model for Forecasting Indonesia’s CO_2 Emissions. Jurnal MSA ( Matematika dan Statistika serta Aplikasinya). 14, 2 (Oct. 2026), 235–247. DOI:https://doi.org/10.24252/msa.v14i2.66114.