Eswar kumar.A, A.Vaishnavi, S.Ayesha, V.Saritha and M. Radhika 2015. Formulation and evaluation of sustained release matrix tablets of nifedipine. IJPAR JOURNAL. 4, 3 (Aug. 2015), 219–229. DOI:https://doi.org/10.61096/ijpar.v4.iss3.2015.219-229.