Wahab, N. A., B. H. Chien, M. R. Omar, A. A. Aziz, N. Mustafa, N. Sukor, and N. A. Kamaruddin. “A Case of Paraganglioma With Cyanotic Congenital Heart Disease”. Acta Medica Indonesiana, vol. 53, no. 1, Mar. 2021, p. 77, https://actamedindones.org/index.php/ijim/article/view/1065.