Malik David
,
Aflizar
,
Afner Synthia Ona Guserike
,
Fukuda Akira
,
Masunaga Tsugiyuki
… This paper investigates the type of Ug cultivation system in West Sumatra and its contribution to farmers' income security. … Economic analysis is carried out consisting of Benefit and Cost ratio (B/C Ratio), net present value (NPV), internal rate of return (IRR), sensitivity test on the discount rate and Gambir production. …
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