An economic study of the manufacture of apple and apricot jam and its impact on improving the standard of living of the rural population in the Damascus countryside (Sergaya district as an example). مجلة للعلوم الزراعية [Internet]. 2023 Mar. 29 [cited 2026 Jun. 18];39(1). Available from: https://journal.damascusuniversity.edu.sy/index.php/agrj/article/view/8590