Das, Susma, Shilpika Khanikar, Shunan Kaping, Jayanti Datta Roy, Arnab Sen, Philippe Helissey, and Jai Narain Vishwakarma. 2020. “Efficient Synthesis of Diversely Substituted pyrazolo[1,5-a]pyrimidine Derivatives Promoted by Ultrasound Irradiation in Water and Their Antibacterial Activities”. European Journal of Chemistry 11 (4):304-13. https://doi.org/10.5155/eurjchem.11.4.304-313.2033.