NJOKUOCHA, R.; OSAYI, E. Airborne pollen and spore survey in relation to allergy and plant pathogens in Nsukka, Nigeria. Bio-Research, [S. l.], v. 3, n. 1, p. 77–84, 2006. DOI: 10.4314/br.v3i1.28575. Disponível em: https://www.ajol.info/index.php/br/article/view/28575. Acesso em: 12 aug. 2026.