Dinku, Z. ., and K. . Raimond. “COUNTERFEIT CURRENCY IDENTIFICATION SYSTEM - A CASE STUDY ON ETHIOPIAN BIRR NOTE”. Zede Journal of Ethiopian Engineers and Architects, vol. 26, Jan. 2023, pp. 73-78, http://ejol.aau.edu.et/index.php/ZEDE/article/view/6585.