Halim, M. E., K. Akhter, S. Ahmed, M. A. A. Hossain, and U. Romman. “One Pot Synthesis of Biginelli 3,4-Dihydro-1H-Pyrimidin-2-Ones and 1,2,3,4-Tetrahydro Pyrimidines”. Bangladesh Journal of Scientific and Industrial Research, vol. 55, no. 3, Sept. 2020, pp. 173-80, doi:10.3329/bjsir.v55i3.49390.