Comparative Engineering Properties of Basalt and Porphyritic Granite in Tokbet-Katul, Pankshin Sheet 190 SE, North-Central Nigeria. J.P.A.S [Internet]. 2026 Apr. 27 [cited 2026 May 10];26(2). Available from: https://atbuscienceforum.com.ng/index.php/jpas/article/view/283