An economic study of wheat crop production using improved wheat varieties and Laser Leveling Technology in Egypt . International Journal of Social Studies, [S. l.], v. 1, n. 1, p. 15–20, 2021. DOI: 10.55627/ijss.01.1.0112. Disponível em: https://rootspress.org/journals/IJSS/article/view/112. Acesso em: 24 apr. 2026.