Efosa Udinmwen, M. I. Oden, E. E. Ukwang & E. O. Ibegbulam 2017. Strain Conditions Indicated by Metamorphic Spots in the Igarra Schist Belt, Southwestern Nigeria. Archives of Current Research International. 6, 3 (Jan. 2017), 1–9. DOI:https://doi.org/10.9734/ACRI/2016/30937.