RONG-SEN YANG2021-05-312021-05-3119920094-6591https://www.scopus.com/inward/record.uri?eid=2-s2.0-0026748989&partnerID=40&md5=1096b4659691bae3da34414981386458https://scholars.lib.ntu.edu.tw/handle/123456789/563877A new goniometerjournal article15019262-s2.0-0026748989