Saayman, Lehanri, and Sanlie L. Middelberg. “The Effect Of Higher Wages On Production Cost And Mechanization: A South African Maize Sector Study”. Journal of Applied Business Research (JABR) 30, no. 2 (February 27, 2014): 341-352. Accessed August 27, 2020. https://clutejournals.com/index.php/JABR/article/view/8402.