Simangunsong, L. P. D., I. N. Napitupulu, R. E. Lumbantoruan, S. Zalukhu, and M. Zebua. “The Expert System of Cholesterol Detection Based on Iris Using the Gabor Filter”. Sinkron : Jurnal Dan Penelitian Teknik Informatika, vol. 4, no. 1, Sept. 2019, pp. 13-18, doi:10.33395/sinkron.v4i1.10161.