Maphanga, W., S. Grobberlaar, R. Peach, and J. K. Visser. 2025. “Scoping Review: Factors, Threats and Opportunities of Outsourcing Maintenance Activities in the South African Pulp and Paper Industry”. The South African Journal of Industrial Engineering 36 (2):214-28. http://sajie.journals.ac.za/pub/article/view/3124.