Yakumbu, S., R. Nasrullah, and I. I. Pratita. “A Politeness and Expressive Acts in Diplomatic Discourse: A Pragmatic Analysis of Marape’s 2024 Address to the Australian Parliament”. Journal of Pragmatics Research, vol. 7, no. 2, Aug. 2025, pp. 368-83, doi:10.18326/jopr.v7i2.368-383.