1. Abasa, R. O. — 1973. Observations on the seasonal emergence of fruit flies on a Kenya coffee estate and studies of the pest status ofCeratitis capitata (Wied.) in coffee[Diptera: Tephritidae]. —E. Afr. Agric. For. J. 39, 144–148.
2. Christensen, L. D. & Stone, W. E. — 1956. Mediterranean fruit fly invades Costa Rica. —Calif. Citrogr., Feb. 1956, 4 pp.
3. Clausen, C. P. — 1978.Tephritidae [Trypetidae, Trypaneidae]. In: Introduced parasites and predators of arthropod pests and weeds; a world review (C. P. Clausen ed.). —U.S.D.A., Agr. Res. Serv. Agric., Handbook No. 480, 320–335.
4. Clausen, C. P., Clancey, D. W. & Chock, Q. C. — 1965. Biological control of the Oriental fruit fly[Dacus dorsalis Hendel] and other fruit flies in Hawaii. —U.S.D.A. Techn. Bull., 1322, 102 pp.
5. Etia, P. M. — 1979. Climat. In: Atlas de la République Unie du Cameroun (G. Laclavere ed.). —Editions Jeune Afrique, Paris, 16–19.