ISLAM, Q.; MATIN, M. Profitability level of betel leaf (Piper betel L.) cultivation in some selected sites of Bangladesh. Bangladesh Journal of Agricultural Research, [S. l.], v. 42, n. 2, p. 343–351, 2017. DOI: 10.3329/bjar.v42i2.32819. Disponível em: https://www.banglajol.info/index.php/BJAR/article/view/32819. Acesso em: 22 may. 2022.