Leonard Chidi Ilechukwu, Chinyere Jacinta Oti, Francisca Chinwendu Okeke and Jacob Usulor
International Business Management 13 ( 6 ): 220 - 227 , 2019
Leonard Chidi Ilechukwu and Jacob Usulor
Journal of Engineering and Applied Sciences 14 ( 2 SI ): 5391 - 5407 , 2019
Leonard Chidi Ilechukwu, John Chijioke Madubuko and Jacob Usulor
Journal of Engineering and Applied Sciences 14 ( 2 SI ): 5351 - 5356 , 2019
Leonard Chidi Ilechukwu and Jacob Usulor
Journal of Engineering and Applied Sciences 14 ( 2 SI ): 5357 - 5364 , 2019
Leonard Chidi Ilechukwu, Ekwutosi Monica Nnadi, Chinyere Augusta Nwajiuba and Jacob Usulor
Research Journal of Applied Sciences 14 ( 5 ): 144 - 155 , 2019