M. . Che Mohd Salleh, N. I. . Abdullah, M. A. M. . Chowdhury, N. A. . Che Embi, and S. Kassim, “Viability of Islamic Health Protection Retirement Plan (i-HPRP) Among Malaysian Public and Private Employees”, IJIF, vol. 15, no. 1, pp. 73–90, Mar. 2023.