(1)
Putri, I. A. K.; Purnamasari, I.; Suyitno. Application of The Fuzzy Ruey Chyn Tsaur Method to The Time Series Data: (Case Study: Total Exports in East Kalimantan from January 2018 to May 2021). j. Matematika Sains dan Teknologi 2024, 25, 103-115.