KUNDAELI, H. N. . Comparison of direct return and birth-death return receivers. Tanzania Journal of Science, [S. l.], v. 27, n. 1, p. 59–71, 2021. Disponível em: http://www.tjs.udsm.ac.tz/index.php/tjs/article/view/542. Acesso em: 6 may. 2025.