Rahmat, Y., A. S. Abdulazeez, I. Gambo, I. Audu, and A. A. Isah. “Investigation of the Properties of Concrete Made With Fly-Ash and Dry Waste Okra Powder”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT, Vol. 20, no. 2, June 2024, pp. 473-82, https://azojete.com.ng/index.php/azojete/article/view/915.