Syafri F, Rafli Z. THE CALLA-BASED ELENA MODEL FOR LINGUISTICS: DOES IT WORK?. IJLECR [Internet]. 2019 Dec. 31 [cited 2024 Nov. 7];5(2):153-65. Available from: https://journal.unj.ac.id/unj/index.php/ijlecr/article/view/14514