4 1 20 75 Tahun Siber dan Sandi Mengabdi Marthen Luther Djari Primary Author mixed material 9785239682101 Jakarta Badan Siber dan Sandi Negara RI 2021 off_to_online.jpeg.jpeg Tentang Tata Kelola Internet Jovan Kurbalija Primary Author mixed material 9786021959602 APJII 2010 WhatsApp_Image_2026-05-11_at_15.35.26.jpeg.jpeg Activism And Research On-Line Kelly Manix Primary Author mixed material 1550143824 Ontario International Women's Rights Project 1999 WhatsApp_Image_2026-05-11_at_13.53.14.jpeg.jpeg 75 Tahun Siber dan Sandi Mengabdi Marthen Luther Djari Primary Author mixed material Jakarta Badan Siber dan Sandi Negara RI 2021 off_to_online.jpg.jpg