Bubou, Gordon Monday, and Joe E. Amadi-Echendu. “AN ASSESSMENT OF THE INNOVATIVENESS OF FIRMS IN NIGERIA’S PETROLEUM SECTOR”. The South African Journal of Industrial Engineering 29, no. 4 (December 10, 2018): 65–81. Accessed April 28, 2024. https://sajie.journals.ac.za/pub/article/view/1881.