Geophysical investigation of leachate contamination around selected dumpsites in Calabar, Nigeria. African Scientific Reports, [S. l.], v. 5, n. 2, p. 499, 2026. DOI: 10.46481/asr.2026.5.2.499. Disponível em: https://asr.nsps.org.ng/index.php/asr/article/view/499. Acesso em: 30 jul. 2026.