Shafi, S., Chand, A., Nawaz, M., Parveen, R., Munawar, S., Ishfaq, M., Sheikh, M., Maryam, A. and Saleem, T. 2020. Facile Synthesis of 5,6,7,8-tetrahydropyrimido[4,5-d] pyrimidine-2,4 (1H,3H) -dione Analogs via One Pot Multicomponent Reaction . FRONTIERS IN CHEMICAL SCIENCES. 1, 1 (Jun. 2020), 1-7. DOI:https://doi.org/10.52700/fcs.v1i1.2.