Fennessy, J; Bidon, T; Reuss, F; Kumar, V; Elkan, P; Nilsson, MA; Vamberger, M; Fritz, U et al. (September 8, 2016). "Multi-locus Analyses Reveal Four Giraffe Species Instead of One". Current Biology26 (18): 2543–2549. doi:10.1016/j.cub.2016.07.036. பப்மெட்:27618261.
Bercovitch, Fred B.; Berry, Philip S. M.; Dagg, Anne; Deacon, Francois; Doherty, John B.; Lee, Derek E.; Mineur, Frédéric; Muller, Zoe et al. (2017-02-20). "How many species of giraffe are there?" (in en). Current Biology27 (4): R136–R137. doi:10.1016/j.cub.2016.12.039. பன்னாட்டுத் தர தொடர் எண்:0960-9822. பப்மெட்:28222287.
Fennessy, J; Bidon, T; Reuss, F; Kumar, V; Elkan, P; Nilsson, MA; Vamberger, M; Fritz, U et al. (September 8, 2016). "Multi-locus Analyses Reveal Four Giraffe Species Instead of One". Current Biology26 (18): 2543–2549. doi:10.1016/j.cub.2016.07.036. பப்மெட்:27618261.
Bercovitch, Fred B.; Berry, Philip S. M.; Dagg, Anne; Deacon, Francois; Doherty, John B.; Lee, Derek E.; Mineur, Frédéric; Muller, Zoe et al. (2017-02-20). "How many species of giraffe are there?" (in en). Current Biology27 (4): R136–R137. doi:10.1016/j.cub.2016.12.039. பன்னாட்டுத் தர தொடர் எண்:0960-9822. பப்மெட்:28222287.
Bercovitch, Fred B.; Berry, Philip S. M.; Dagg, Anne; Deacon, Francois; Doherty, John B.; Lee, Derek E.; Mineur, Frédéric; Muller, Zoe et al. (2017-02-20). "How many species of giraffe are there?" (in en). Current Biology27 (4): R136–R137. doi:10.1016/j.cub.2016.12.039. பன்னாட்டுத் தர தொடர் எண்:0960-9822. பப்மெட்:28222287.