ง บทคัดย่อภาษาอังกฤษ Title AUTOMATIC POSITIONING CONTROL OF AERATOR BASED ON GPS SYSTEM. Author WASAN WICHAI Advisor Assistant Professor Kriangsak Prompak Co-Advisor Associate Professor Paramote Wardkein Academic Paper M.S. Thesis in Applied Physics, Naresuan University, 2021 Keywords Aerator, GPS System, …