RETHA J. MATTERN, ZHI YANG BRIAN CHAN, JAMES ONDRACEK, ANDY BERTSCH, M. SAEED. Valero energy corporation case study. j. adv. res. s. sci. hum. [Internet]. 2020Feb.10 [cited 2025Feb.23];5(1):38-2. Available from: https://jarssh.com/ojs/index.php/jarssh/article/view/34