Hutauruk, B. S. ., R. Fazalani, D. Ilmi, D. Supit, and A. I. Asmaryadi. “Psycholinguistic: Child Language Acquisition at The Phonological Level”. Journal for Lesson and Learning Studies, vol. 6, no. 2, June 2023, pp. 257-64, doi:10.23887/jlls.v6i2.61241.