. "The effectiveness of a preventive health strategy based on the philosophy of preventive education and the introduction of Infusion to avoid dangers of infection with the Coronavirus COVID-19 among primary school children in the Kingdom of Saudi Arabia". مجلة کلية التربية - جامعة المنوفية, 2021, 1, 2021, 3-83. doi: 10.21608/muja.2021.163683