Ngono Lucrèce. “he uman ontribution to ocal istory hrough the evelopment of ock helters in the damawa egion”. Journal of Innovation in Social Science 3, no. 1 (March 31, 2022): 18–31. ccessed January 10, 2025. http://8.218.148.162:8081/JISS/article/view/36.