Yasin, Verdi, 		Peniarsih, Peniarsih, 		Gozali, Ahmad, AND 		Junaedi, Ifan.
" Application of expert system diagnosis of color blindness with ishihara method with microsoft vb 6.0" <em>International Journal of Informatics, Economics, Management and Science</em> [Online], Volume 1 Number 1 (8 January 2022)