From: Sustainable coffee supply chain management: a case study in Buon Me Thuot City, Daklak, Vietnam
Count | Â | Â | Â | Â | Â | Â |
 |  | Profit from the coffee farm | Total | |||
 |  | <80 million Vietnamese dong/ha/year | 80–100 million Vietnamese dong/ha/year | 100–120 million Vietnamese dong/ha/year | >120 million Vietnamese dong/ha/year | |
Certification ownership | Yes | 4 | 7 | 24 | 31 | 66 |
No | 25 | 30 | 10 | 6 | 71 | |
Total | 29 | 37 | 34 | 37 | 137 | |
Chi-Square Tests | ||||||
 | Value | Df | Asymp. Sig. (2-sided) | |||
Pearson Chi-Square | 52.048a | 3 | .000 | |||
Likelihood Ratio | 56.584 | 3 | .000 | |||
Linear-by-Linear Association | 46.404 | 1 | .000 | |||
N of Valid Cases | 137 | Â | Â |