Bahartin, W., L. A. Nisa, and M. J. Luthfi. “Anatomical and Histologycal Study on Digestive Organs of Tree Shrew (Tupaia Javanica)”. Proceeding International Conference on Science and Engineering, vol. 4, Feb. 2021, pp. 138-40, http://sunankalijaga.org/prosiding/index.php/icse/article/view/645.