ROACH, Robert; BERDAHL, Loleen Youngman. Lessons From the Field: Surveying Hard-to-Reach Populations: Response to Boychuk’s Critique. Canadian Review of Social Policy / Revue canadienne de politique sociale, [S. l.], n. 43, 1999. Disponível em: https://crsp.journals.yorku.ca/index.php/crsp/article/view/33563. Acesso em: 3 may. 2024.