SANNI, K. O.; ADAMU, M. O.; ODUMUYIWA , V. OVERVIEW OF SCHEDULING PROBLEMS WITH LEARNING EFFECT, DETERIORATING EFFECT, MAINTENANCE ACTIVITY AND NON- MONOTONIC TIME-DEPENDENT PROCESSING TIMES. Unilag Journal of Mathematics and Applications, v. 1, n. 1, p. 82-103, 9 Sep. 2021.