Azzahra, P. and Haerani, E. (2022) “Penerapan dan Implementasi Metode Certainty Factor Dalam Sistem Pakar Diagnosa Awal Gangguan Menstruasi PALM-COEIN”, Building of Informatics, Technology and Science (BITS), 4(2), p. 1083−1090. doi: 10.47065/bits.v4i2.1805.