ง บทคัดย่อภาษาอังกฤษ Title THE APPLICATION OF INTERNET OF THINGS (IOT) TECHNOLOGY IN SMART DUST-FALL JAR Author Chirawat Thongkaemkaeo Advisor Assistant Professor Pajaree Thongsanit, Ph.D. Academic Paper M.Eng. Thesis in Environmental Engineering, Naresuan University, 2022