Ulvan, A., Sukmana, I., & Kurniawan, D. (2018). Preface.
Chicago Style (17th ed.) CitationUlvan, A., I. Sukmana, and Denni Kurniawan. Preface. 2018.
MLA (9th ed.) CitationUlvan, A., et al. Preface. 2018.
Warning: These citations may not always be 100% accurate.