Nurhayati, Siti. “The Student’s Ability in Using Punctuation and Capitalization through Performing Habit of Writing Diary”. INTERACTION: Jurnal Pendidikan Bahasa, vol. 6, no. 2, Nov. 2019, pp. 11-20, https://e-journal.unimudasorong.ac.id/index.php/interactionjournal/article/view/2572.