F. G. Ngaine, H. Inyega, . J. M. Kalai, and L. K. Ganira, “Effect of face-to-face promotive interaction in cooperative learning on preschoolers’ achievement in English language activities in Tharaka-Nithi County, Kenya”, Afr. Quarterly S.S. Review, vol. 3, no. 4, pp. 888–899, Nov. 2026, doi: 10.51867/AQSSR.3.4.71.