Udoh, Nse, Iniobong Uko, and Kufre Bassey. 2024. “Effect of Load on Sequential Imperfect Preventive Maintenance and Replacement Schedules of Mechanically Repairable Machines”. Journal of Reliability and Statistical Studies 16 (02):337-56. https://doi.org/10.13052/jrss0974-8024.1628.