Kulsawad, Nirattisai, Piruenporn Meema, Uraiwan Chatchawan, Torkamol Hunsawong, and Wichai Eungpinichpong. 2019. “Validity and Reliability of Digital WE Algometer in Subjects With Myofascial Trigger Points on Trapezius Muscle”. Archives of Allied Health Sciences 31 (2). Khon Kaen, Thailand:122-29. https://he01.tci-thaijo.org/index.php/ams/article/view/210592.