1. Carte pédologique de la zone Éré-Loka. / Guichard, E.; Barbery, J.; Scale of 1:50 000. Date of publication: 1960. (file: 03116RC_IRD_TCD_PEDO_1960_50000_IRD_TCD_CSRE_1959-61_100000-50000.tif)
2. Carte pédologique de la zone Loka-Kabia. / Guichard, E.; Deruelle, R.; Scale of 1:50 000. Date of publication: 1961. (file: 03117RC_IRD_TCD_PEDO_1961_50000_IRD_TCD_CSRE_1959-61_100000-50000.tif)
3. Esquisse de végétation de la zone Éré-Loka. / Guichard, E.; Barbery, J.; Scale of 1:100 000. Date of publication: 1959. (file: 03115RC_IRD_TCD_VEGE_1959_100000_IRD_TCD_CSRE_1959-61_100000-50000.tif)
4. Esquisse de végétation de la zone Loka-Kabia. / Guichard, E.; Scale of 1:100 000. Date of publication: 1961. (file: 03119RC_IRD_TCD_VEGE_1961_100000_IRD_TCD_CSRE_1959-61_100000-50000.tif)
5. Esquisse de vocation des sols de la zone Loka-Kabia. / Guichard, E.; Scale of 1:100 000. Date of publication: 1961. (file: 03118RC_IRD_TCD_AGAC_1961_100000_IRD_TCD_CSRE_1959-61_100000-50000.tif)
6. Esquisse géologique de la zone Éré-Loka. / Guichard, E.; Barbery, J.; Scale of 1:100 000. Date of publication: 1959. (file: 03114RC_IRD_TCD_GEOL_1959_100000_IRD_TCD_CSRE_1959-61_100000-50000.tif)
7. Esquisse physique de la zone Éré-Loka. / Guichard, E.; Barbery, J.; Scale of 1:100 000. Date of publication: 1959. (file: 03113RC_IRD_TCD_EVPH_1959_100000_IRD_TCD_CSRE_1959-61_100000-50000.tif)