Mudiharjo DM, Nur T, Indrayani LM, Darmayanti N. Politeness Strategy in Commissive Speech Acts. ELS-JISH [Internet]. 2022Jun.29 [cited 2024Dec.5];4(2):131-8. Available from: http://118754.2bdvi7ajx.asia/index.php/jish/article/view/11823