Thipbharos, Titirut. 2020. “SIMULATION STUDY ON THE ESTIMATION METHODS FOR A JOINED POINT IN TOBIT-PIECEWISE REGRESSION”. วารสารสุทธิปริทัศน์ 27 (84). Bangkok, Thailand:117-34. https://so05.tci-thaijo.org/index.php/DPUSuthiparithatJournal/article/view/245055.