Fitriani, Ella. "LER Instruments English". OER Commons. Institute for the Study of Knowledge Management in Education, 23 Apr. 2017. Web. 22 Nov. 2024. <https://oercommons.org/authoring/21557-ler-instruments-english>.
Fitriani, E. (2017, April 23). LER Instruments English. OER Commons. Retrieved November 22, 2024, from https://oercommons.org/authoring/21557-ler-instruments-english.