Quang Phung Duy, Thinh Nguyen Huu, Chien Doan Quyet, Nhat Nguyen Hong 2021. UPPER BOUNDS FOR RUIN PROBABILITY IN A CONTROLLED GENERAL RISK PROCESS WITH RATE OF INTEREST IS A FIRST - ORDER. Turkish Journal of Computer and Mathematics Education (TURCOMAT). 12, 13 (Jul. 2021), 6961–6968. DOI:https://doi.org/10.17762/turcomat.v12i13.10090.