Azzolini, M., Jacomino, A. P. and Bron, I. U. (2004) “Indices to evaluate postharvest quality of guavas under different maturation stages”, Pesquisa Agropecuaria Brasileira, 39(2), pp. 139–145. doi: 10.1590/S1678-3921.pab2004.v39.6748.