References
- Van Ranst , E. 1992 . The Belgian Soil Science Project at the University Centre of Dschang in Cameroon . Tropicultura , 10 (1) : 270 – 29 .
- Decret No. 91/235 du 23 Mai 1991 portant reorganisation de l'Institut de la Recherche Agronomique.
- 1992 . International Plant‐Analytical Exchange Program , Wageningen , , The Netherlands : c/o Dr. V.J.G. Houba, Department of Soil Science and Plant Nutrition. Wageningen Agricultural University .
- Tchuenteu , F. and Schalk , B. 1988 . Methods of the Ekona laboratory for soil and plant, water and fertilizer analysis. Part I: Routine methods for soil analysis and Part 2: Methods for plant analysis , FAO/UNDP Soil Resources Project Manual 3 Cameroon : IRA Ekona . Version 3.1