AWOJIDE, S H; OYEWOLE, K A; ABIONA, O O; AGBAJE, A W. Phytotoxicity of essential oil from Piper nigrum L. on some selected food crops as a potential herbicide in Africa. African Journal of Pure and Applied Sciences, Nairobi, Kenya, v. 2, n. 2, p. 93–99, 2021. DOI: 10.33886/ajpas.v2i2.212. Disponível em: https://journal.ku.ac.ke/index.php/AJPAS/article/view/212. Acesso em: 26 aug. 2026.