Kandi, N.N.A.S. and Wibawa, I.M.C. 2024. Natural and Social Sciences E-book Based on Inquiry Learning to Improve Higher Order Thinking Skills of Fourth Grade Elementary School Students. Thinking Skills and Creativity Journal. 7, 1 (Jul. 2024), 96–105. DOI:https://doi.org/10.23887/tscj.v7i1.80518.