Shlini, D., M, C. and S, S. (2025) “Method development and validation of levonorgesterel and ethinyl estradiol in bulk and its pharmaceuticals dosage forms”, Frontier Journal of Pharmaceutical Sciences and Research, 8(3), pp. 5–10. Available at: https://frontierjournals.org/index.php/fjpsr/article/view/35 (Accessed: 6 December 2025).