Kartikawati, D., and I. . Rakhmawati. “THE EFFECTIVENESS OF E-LEARNING IN ‘IDIOM BASED LEXICAL STUDIES’ AT STKIP PGRI TULUNGAGUNG”. LinguA-LiterA: Journal of English Language Teaching Learning and Literature, vol. 1, no. 2, Nov. 2018, pp. 27-36, https://jurnal.stkippgritrenggalek.ac.id/index.php/lingua/article/view/80.