de Carvalho, V. D., Paula, M. B. de, Abreu, C. M. P. de, & Chagas, S. J. de R. (1991). Effect of plant harvest period on chemical composition of pineapple leaves. Pesquisa Agropecuaria Brasileira, 26(10), 1655–1661. https://doi.org/10.1590/S1678-3921.pab1991.v26.3508