„Anti-Gastric Ulcer Effect of Betulinic Acid in Male Albino Rats” (2021) Nigerian Journal of Physiological Sciences, 30(1), pp. 033–037. Disponibil la: https://ojshostng.com/index.php/njphysiologicalsciences/article/view/1831 (Data accesării: 5 aprilie 2026).