Taengchum, Thanyalak, and Surapong Chirarattananon. “Application of light pipes in office buildings in Thailand”. Asia-Pacific Journal of Science and Technology 23, no. 1 (February 16, 2018): APST–23. accessed March 6, 2026. https://so01.tci-thaijo.org/index.php/APST/article/view/112299.