SHLINI, Dandem; M, Chaitanya; S, Shalini. Method development and validation of levonorgesterel and ethinyl estradiol in bulk and its pharmaceuticals dosage forms. Frontier Journal of Pharmaceutical Sciences and Research, [S. l.], v. 8, n. 3, p. 5–10, 2025. Disponível em: https://frontierjournals.org/index.php/fjpsr/article/view/35. Acesso em: 6 dec. 2025.