Shettima, B., Adams, F. D., Haruna, A. I., Goro, A. I. and Bukar, M. (2018) “GEOCHEMICAL FACIES OF THE TURONIAN GONGILA FORMATION, BORNU (CHAD) BASIN, NIGERIA: IMPLICATION FOR PROVENANCE, PALEOCLIMATE AND PALEOWEATHERING CONDITIONS”, International Journal of Research -GRANTHAALAYAH, 6(4), pp. 144–156. doi: 10.29121/granthaalayah.v6.i4.2018.1637.