K, S., I. S. S. Vaz, and R. S. “Comparative Evaluation of Nitrosamine Impurity Control Strategies in USFDA, EMA, and WHO Pharmaceutical Submissions”. International Journal of Drug Regulatory Affairs, Vol. 14, no. 3, Sept. 2026, pp. 77-91, doi:10.22270/ijdra.v14i3.905.