Visser, Jacobus Krige, and Arnold Botha. “EVALUATION OF THE IMPORTANCE OF THE 39 SUBJECTS DEFINED BY THE GLOBAL FORUM FOR MAINTENANCE AND ASSET MANAGEMENT”. The South African Journal of Industrial Engineering 26, no. 1 (March 9, 2015): 44–58. Accessed April 14, 2024. http://sajie.journals.ac.za/pub/article/view/1081.