Prof. Nyakora, Musa O. 2018. “DEVELOPMENTAL MODELS THAT FACILITATE THE DEVELOPMENT OF OD SYSTEMS TO IMPROVE OR CHANGE SOCIO-CULTURAL SYSTEMS THROUGH UTILIZATION OF VALID KNOWLEDGE TO DEPICT SOME PHENOMENON”. International Journal of Research Science and Management 5 (2):25-36. https://ijrsm.com/index.php/journal-ijrsm/article/view/275.