Kinafa, A., M.B. Mohammed, and A. Abdulkadir. “LOGISTIC REGRESSION ON THE PRIMIPARAL AGE OF WOMEN IN GOMBE, GOMBE STATE”. International Journal of Engineering Technologies and Management Research, vol. 5, no. 7, July 2018, pp. 7-16, doi:10.29121/ijetmr.v5.i7.2018.254.