Biyantoro, A. et al. 2025. Speculation on OTTV Value in Buildings With Predominance of Concrete Cladding in Humid Tropical Areas: Case Study: Tree Inn Hotel in Batu. Proceedings of International Conference of Graduate School on Sustainability. 9, 1 (Nov. 2025), 368–376. DOI:https://doi.org/10.26905/icgss.v9i1.16391.