Jacques Arrivets et Jean Louis Bozza
2009, Report
Réseau Méga-Tchad
2005, Technical document
M. Fok
2006, Conference proceedings
Anonyme
2004, Technical document
Anonyme
1997, Conference proceedings
Bouré Ouéyé Gaouna
2012, Technical document
Anonyme
2008, Report
MEKILA, MBAIKOUBOU; MOHAMMAD FADJANNOUR, HADJARO; WANG YANG, BOUBA
2011, Report
NAITORMBAIDE, Michel; DJONDANG koye; MBAYOUDEL, Koumaro et NEKOUAM Ndomian
2009, Report
D. KADEKOY-TIGAGUE1, D.P. FOLEFACK2 AND K. DJONDANG3
2010, Article (sc. journal)