According to Dr. V. Sicat Lolita (2009). There are three methods of dissemination of data collection, including direct interviewing, data collection method indirectly by questionnaire drafted, and registration or documentation analysis. Methods used in the study are determined by the nature of the research and research design and depends on the time and resources available for research.
According to Nguyen Hai Shui (2013). Methods of direct personal interviews (personal interviews) was done by the investigator in person object under investigation to interview a questionnaire was prepared.
Applying the research complex phenomenon , need to collect a lot of data; when you want to poll the audience through a brief question and can respond quickly, ...
directly interviewing black pepper farmers through questionnaires (questionnare) drafted; The selected households to interview a random stratified by social.
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