DEVELOPMENT AND DIFFERENTIATION OF KERATINIZED ORAL ARMATURE UNDER THE INFLUENCE OF VITAMIN A IN Bufo melanostictus STAGE 34 AND 36. J. Sci. Innov. Nat. Earth [Internet]. 2021 Nov. 25 [cited 2024 Dec. 22];1(4):04-8. Available from: https://jsiane.com/index.php/files/article/view/133