https://monograph.ptti.web.id/index.php/bookseries en-US info@monograph.ptti.web.id (Dr. Iswanto, M.Eng) purwono@uhb.ac.id (Purwono, S.Kom., M.Kom) OMP 3.3.0.13 http://blogs.law.harvard.edu/tech/rss 60