1. Directorate of Higher Education Ministry of Education and Culture, Pedoman operasional penilaian angka kredit kenaikan pangkat/jabatan akademik dosen [Operational guide to credit points for lecturer’s academic position promotion]. Directorate of Higher Education, Ministry of Education and Culture, Jakarta, 2014.
2. Sadjuga, “Ministry of Research, Technology, and Higher Education Policy on National and International Journal.” Ministry of Research, Technology, and Higher Education, Jakarta, 2017.
3. Ministry of Research Technology and Higher Education, "Strength of 50 Indonesian Academic Institutions: Profile of Academic Publication in Scopus." Directorate of Research Empowerment and Development, Ministry of Research, Technology and Higher Education, Jakarta, 2016.
4. Publications of Islamic University of Indonesia in Scopus Database: a bibliometric assessment;Darmadji;COLLNET J. Sci. Inform. Manag.,2018
5. Research productivity and international collaboration of top Indonesian universities;Darmadji;Curr. Sci.,2018