Agutu, Matunga Hellen, Dr. Paul Gichohi, and Dr. Bernard Wamalwa. 2019. “Effects of Cooperative Thinking Skills Training Intervention on Academic Performance of Primary School Pupils in Nakuru West Sub-County, Kenya”. Journal of Education 2 (3):25-35. https://www.stratfordjournal.org/journals/index.php/journal-of-education/article/view/337.