Fitrah Abu Bakar N, Norhidayah Abdullah Zawawi S, Mohd Zin R, Abdul Rahman N, Kassim Shaari N. Characterization of Sand Proppant and Its Improvement via Polyurethane Coating. IJET [Internet]. 2018 Nov. 27 [cited 2024 Nov. 22];7(4.18):390-9. Available from: https://sciencepubco.com/index.php/ijet/article/view/21976