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enterprises like oil palm (Abdulla and Arshad, 2017)  2.1.3 Constraints in rubber production by smallholder farmers  The constraints in rubber production are categorized as production and marketing constraints.

Figure 1 enterprises like oil palm (Abdulla and Arshad, 2017) 2.1.3 Constraints in rubber production by smallholder farmers The constraints in rubber production are categorized as production and marketing constraints.