Iwhiwhu , D., and F. C. Ugbe. “INVESTIGATION OF THE PROPERTIES OF FAILED SECTIONS ALONG ABAKALIKIOBUBRA ROAD SOUTHEASTERN, NIGERIA”. NIGERIAN JOURNAL OF SCIENCE AND ENVIRONMENT 21, no. 1 (June 7, 2023). Accessed May 20, 2024. https://delsunjse.com/index.php/njse/article/view/122.