Procedures For Selecting Sample Unit  in Field Social Research(Study Content Analysis of Doctoral Theses in Sociology Between1992- 2012). Damascus University Journal of arts and humanities sciences, [S. l.], v. 40, n. 4, 2024. Disponível em: https://journal.damascusuniversity.edu.sy/index.php/humj/article/view/13867. Acesso em: 18 jun. 2026.