Elsaeed, Hoyam Mahgoub Mohammed, Bakhita Mohammedzain Ali Mohammed, and Ali Farah Ahmed. 2025. “The Role of Job Satisfaction in Increasing Productivity Trainers at Vocational and Business Skills Training Centers in Khartoum State (Karari Center Model)”. Journal of Ecohumanism 4 (4):369 -. https://doi.org/10.62754/joe.v4i4.6738.