Bulus, L. N., and T. E. Odetoye. “Biolubricant Production from Parinari Polyandra and Azadirachta Indica Seed Oils Using Trimethylolpropane Polyol. ”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT 18, no. 2 (June 1, 2022): 295-306. Accessed April 20, 2024. https://azojete.com.ng/index.php/azojete/article/view/597.