Osafo-Adjei, L., U. S. . Tetteh, and B. N. M. Dadzie. “Verbs As Central Elements in Role and Reference Grammar and Dependency Grammar and Valency Theories”. AFRICAN JOURNAL OF APPLIED RESEARCH, vol. 9, no. 1, May 2023, pp. 194-08, doi:10.26437/ajar.v9i1.529.