M. Pasqual, V. G. Ribeiro, and J. D. Ramos, “Effect of GA3 and active charcoal on the in vitro rooting of ’Natal’ sweet orange”, PAB, vol. 25, no. 10, pp. 1477–1482, Apr. 2014, doi: 10.1590/S1678-3921.pab1990.v25.13670.