O. G. Utu, A. H. Madukasi, I. U. Onyenanu, and E. C. Joseph, “Multi-Objective Optimization of a Coconut Dehusking Machine Using Response Surface Method (RSM)”, J. Sustain. Eng. Renew. Energy., vol. 1, no. 1, pp. 52–62, Sep. 2025, doi: 10.54536/jsere.v1i1.4905.