A Trivariate Causality Test: A Case Study in Cameroon

1. ¹ Department of Thermal and Energy Engineering, University Institute of Technology, University of Douala, Douala, Cameroon
2. ² Department of Thermal and Energy Engineering, University Institute of Technology, University of Douala, Douala, Cameroon
3. ³ Department of Thermal and Energy Engineering, University Institute of Technology, University of Douala, Douala, Cameroon
4. ⁴ Department of Thermal and Energy Engineering, University Institute of Technology, University of Douala, Douala, Cameroon
5. ⁵ Department of Thermal and Energy Engineering, University Institute of Technology, University of Douala, Douala, Cameroon