Palm oil is the largest source of edible oil before soybean oil in
the world, which contributes 31.8% of the world’s production of oils
and fats [1]. The demands of palm oil will double in the year 2020
exceeding 57 million tons (62%) of the world’s production of oils
and fats. This is due to the increasing world population which is
expected to be seven billion in the year 2020. Thus, larger oil palm
plantation and more workers are needed, and this is expected to
be a major problem by the competition with population area and
modernization of the jobs than agriculture sectors.