HIDAYATULLAH, M. et al. 2024. PERBANDINGAN METODE FUZZY TIME SERIES MARKOV CHAIN DAN FUZZY TIME SERIES CHENG DALAM MERAMALKAN NILAI TUKAR RUPIAH TERHADAP DOLAR AMERIKA SERIKAT (AS). Jurnal Matematika UNAND. 12, 2 (Feb. 2024), 121–134. DOI:https://doi.org/10.25077/jmua.12.2.121-134.2023.