unknown. (2020). The impact of COVID-19 on the importance and use of public urban green spaces in Saudi Arabia with reference to Dammam city.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)unknown. The Impact of COVID-19 on the Importance and Use of Public Urban Green Spaces in Saudi Arabia with Reference to Dammam City. 2020.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)unknown. The Impact of COVID-19 on the Importance and Use of Public Urban Green Spaces in Saudi Arabia with Reference to Dammam City. 2020.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.