Production of Ceramic Membrane Based on Acid- and Alkali-Activated Metakaolinite as Cooling Material for Monocrystalline Silicon Solar Cell. Valensi [Internet]. 2019 Nov. 30 [cited 2025 Oct. 14];5(2):159-68. Available from: https://journal.uinjkt.ac.id/valensi/article/view/8562