https://www.thesaurus.asiana.net/vocab/https://www.thesaurus.asiana.net/vocab/xml.php?skosTema=1460วรรณยุกต์ต่ำตก (Low-Falling tone) https://www.thesaurus.asiana.net/vocab/xml.php?skosTema=1460 คะยัน (Kayan) RT