Syakur A. INSTRUCTIONAL MATERIALS OF SOCIAL COMUNICATION AND SCIENCES DEVELOPT BY ESP FOR UNDERGRADUATE STUDENTS OF PUBLIC ADMINISTRATION DEPARTMENTS IN STISOSPOL “WASKITA DHARMA” MALANG PERIODE 2014-2015: Instructional Materials, English for Specific Purposes (ESP), Public Administration Departments. jamak [Internet]. 2020Jul.22 [cited 2025Feb.5];2(1):1-15. Available from: https://ejurnal.waskitadharma.ac.id/index.php/jamak/article/view/25