Nasution, M. M., R. Afria, and J. Izar. “The Kinds of Illocutionary Act by Yusuf Hamka in Youtube Channel Deddy Corbuzier Podcast”. Titian: Jurnal Ilmu Humaniora, vol. 6, no. 2, Dec. 2022, pp. 375-80, doi:10.22437/titian.v6i2.22539.