Akhter, Kawsari, Khorshada Jahan, U.K.R. Romman, M. Giasuddin Ahmed, Md. Sharifur Rahman, and Md. Al-Amin. 2015. “A Green Approach to Synthesize Dihydropyrimidinone Derivatives by Using Anhydrous ZnCl2 Catalyst Under Refluxing Condition in Heptane-Toluene Medium via Biginelli Reaction”. Asian Journal of Chemistry 27 (7):2624-26. https://doi.org/10.14233/ajchem.2015.18615.