SAHA, A., and S. MALLIK. “IMPACT OF ACTIVE PHARMACEUTICAL INGREDIENT (API) SCARCITY IN PHARMACEUTICAL SECTORS AMIDST COVID-19 PANDEMIC”. International Journal of Pharmacy and Pharmaceutical Sciences, vol. 12, no. 12, Dec. 2020, pp. 22-25, doi:10.22159/ijpps.2020v12i12.39396.