Mohammad Reza febrino, Dony Permana, syafriandi, Nonong Amalita. Comparison of Forecasting Using Fuzzy Time Series Chen Model and Lee Model to Closing Price of Composite Stock Price Index. ujsds [Internet]. 2023 Mar. 8 [cited 2024 Sep. 19];1(2):74-81. Available from: https://ujsds.ppj.unp.ac.id/index.php/ujsds/article/view/22