Safitri NAS. SUBSTITUSI FONEM DALAM PEMEROLEHAN FONOLOGI ANAK USIA 2 TAHUN: STUDI KASUS SUBJEK TUNGGAL: Phoneme Substitution in the Acquisition of Phonology in 2-Year-Old Children: A Single-Subject Case Study. AUFKLARUNG [Internet]. 2026 Jan. 26 [cited 2026 Jun. 9];5(2):131-8. Available from: https://etdci.org/journal/AUFKLARUNG/article/view/5253