Quang Phung Duy, Thinh Nguyen Huu, Chien Doan Quyet, Nhat Nguyen Hong. “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), vol. 12, no. 13, July 2021, pp. 6961-8, doi:10.17762/turcomat.v12i13.10090.