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Publikováno v:
IJEMS (Indonesian Journal of Environmental Management and Sustainability), Vol 4, Iss 1, Pp 1-9 (2020)
Bentonite, especially Sodium (Na) Bentonite is a type of clay that is used as a basis for water-based drilling mud in the of oil and gas wells drilling throughout the world including Indonesia, bentonite used in Indonesia is still partially imported