Peranginangin, Arjuna, Aldo Elias Alrisky Pasaribu, Alvin Zonatan Sagala, and ElviYosna Lubis. “Modality in Susilo Bambang Yudhoyono and Joko Widodo’s Presidential Inauguration Speeches”. KnE Social Sciences 5, no. 4 (March 11, 2021): 101–111. Accessed August 11, 2025. https://knepublishing.com/index.php/KnE-Social/article/view/8670.