Pengaruh Kecepatan Pengadukan Dan Konsentrasi Logam La Terhadap Lempung Pada …

ABSTRACT The increased energy needs of fossil fuels in particular leads to a decline in the world’s oil reserves which make this extremely rare. One way to reduce the energy crisis and the impact that fossil-funded energy use can have is to develop new and renewable energies such as vegetable fuels. One of the alternative forms of energy currently being developed is biodiesel. Biodiesel …