Lodhi, B., P. Padamwar, and A. Patel. “Cleaning Validation for the Pharmaceuticals, Biopharmaceuticals, Cosmetic and Neutraceuticals Industries”. Journal of Innovations in Pharmaceutical and Biological Sciences, vol. 1, no. 1, Jan. 2014, pp. 27-38, https://jipbs.com/index.php/journal/article/view/11.