Hapitta, Okky Dwi, and Audrey Gabriella Titaley. “The Identity of the Main Character in Youth Novel ‘Yildiz heißt Stern’ by Isolde Heyne ”. Nusantara Science and Technology Proceedings, vol. 2022, no. 1, Feb. 2022, pp. 166-7, https://doi.org/10.11594/nstp.2022.1922.