Cindani, A. D.; Fediyanto, N. An Analysis of Students Errors in Direct-Indirect Sentence in Online Learning During Covid-19 Pandemic of Tenth Grade Vocation High School: Analisis Kesalahan Siswa Pada Kalimat Langsung Tidak Langsung Dalam Pembelajaran Online Pada Pandemi Covid-19 Kelas 10 SMK. acopen 2022, 6, 10.21070/acopen.6.2022.2556.