KITUYI , Lusweti; OLUKUSI , Alwala Joseck. Sorption and Availability of Potassium in Selected Soils from Western Kenya . African Journal of Education,Science and Technology (AJEST), [S. l.], v. 2, n. 3, p. Pg 168–180, 2015. Disponível em: http://ajest.org/index.php/ajest/article/view/629. Acesso em: 3 apr. 2026.