Lederman, I.E. and Gazit, S. (1993) “Growth, development and maturation of the purple (Passiflora edulis, Sims.) the whole fruit”, Pesquisa Agropecuaria Brasileira, 28(10), pp. 1195–1199. doi:10.1590/S1678-3921.pab1993.v28.3987.