L. . Nugraheni, L. A. . Sa’adah, M. N. . Ahsin, A. . Hariyadi, and W. Sri Surachmi, “Analysis of Language Politeness in the Film Wings of Patah by Rudi Soedjarwo”, ICCCM JSSH, vol. 2, no. 3, pp. 59–65, Jun. 2023.