Kharis, M., Kisyani Laksono, Suhartono, Agus Ridwan, Mintowati, and Yuniseffendri. 2022. “Tokenization and Lemmatization on German Learning Textbook Level A1 of CEFR Standard”. Journal of Higher Education Theory and Practice 22 (1). https://doi.org/10.33423/jhetp.v22i1.4971.