SINGAL, R. K. An Integrated Course in Rural Technology. Journal of Engineering Education Transformations, [S. l.], p. 30–34, 1993. DOI: 10.16920/jeet/1993/v7i2/114749. Disponível em: https://journaleet.in/index.php/jeet/article/view/806. Acesso em: 5 dec. 2025.