Khawgrib, Sukon, Saipin Chaiyanan, Sitthipan Chaiyanan, Injira Niyomtoon, and Sarintorn Patampan. 2021. “IMPACT OF PM2.5 ON BUILDING HYGIENE, A CASE STUDY OF CHANTHABURI NATIONAL ARCHIVES”. Research Journal Phranakhon Rajabhat : Science and Technology 16 (2):34-44. https://li01.tci-thaijo.org/index.php/PRRJ_Scitech/article/view/249638.