K. J. D, J. C, M. Singh, R. G. K, and H. Joshi, “COMPARISON STUDY OF VITAMIN-B12 FOR ITS EFFICACY AND BIOAVAILABILITY OF VARIOUS FORMULATIONS IN THE TREATMENT OF PERNICIOUS ANEMIA”, Int J Pharm Pharm Sci, vol. 7, no. 13, pp. 6–8, Oct. 2015.