Use a multi-stage sampling (Multistage Sampling) is 1 to 2 Quota Sampling Purposive Sampling)) by defining criteria as follows: 1) must be a Community Enterprise group member farmers who planted a mango exporter or cooperative groups, chachoengsao the mango farmer clubs chachoengsao province 2) select only those operations (active) data collection and event-specific pages (Accidental sampling), using the criteria in decision making is to be ready, willing to cooperate and to have group discussions (Focus group), which is the total number of samples from 36 in total, approximately 15 percent of the total number of members to 230 people.
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