Farida Agustini W, and Thathit Purwaningtyas. “STIMASI ODEL KSPONENSIAL IFETIME ENGAN OUBLE ENSORING”. imits: ournal of athematics and ts pplications, vol. 7, no. 2, Aug. 2025, p. 27, https://journal.its.ac.id/index.php/limits/article/view/5261.