OKANGO , Ayubu Anapapa; KOSKE , Joseph Kipsigei; MUTISO , John Muindi. Analysing Four Factor Second Order Models Using Response Surface Methodology with Application in Germination of Melia volkensii . African Journal of Education,Science and Technology (AJEST), [S. l.], v. 4, n. 2, p. Pg 71–101, 2017. Disponível em: http://ajest.org/index.php/ajest/article/view/159. Acesso em: 3 apr. 2026.