HayatuN. G.; SharuM. B. PROPERTIES AND CLASSIFICATION OF SOME BARREN SOILS OF KALAMBAINA RIDGE AFTER 25 YEARS OF CONVERSION FROM FOREST TO ARABLE CROPLAND IN KURU-KURU VILLAGE, KWARE, SOKOTO. FUDMA JOURNAL OF SCIENCES, v. 4, n. 1, p. 430 - 437, 14 Apr. 2020.