• University of Yaoundé I, Cameroon
  • University of Limoges
  • IRCER, CNRS and University of Limoges
  • Mission for the Promotion of Local Materials, Cameroon
  • University of N’Gaoundéré
  • University of Douala
  • University of Bangui, CAR
  • Cameroon Clay Group
  • Groupe de Recherche sur les Argiles du Congo
  • Gabonese Clay Group
  • Central African Materials Science Research Team