D. Auwalu, “THE GEOCHEMISTRY OF VOLCANIC PLUGS INTRUDING SHALES OF THE PINDIGA FORMATION, GONGOLA SUB-BASIN, NORTHERN BENUE TROUGH, NIGERIA: IMPLICATIONS FOR PROVENANCE, WEATHERING, AND TECTONIC SETTING”, FJS, vol. 10, no. 3, pp. 238–244, Feb. 2026, doi: 10.33003/fjs-2026-1003-4532.