na INLIS000000000000622 20230302094843 0010-0919000053 SBPUPAD ind Igrea Siswanto Awas Bahaya Bullying / Igrea Siswanto Cet. 1 vi, 34 halaman ; 28 cm. bibliografi, hlm 33 978-602-6323-48-4 ind [23] 302.3 302.3 IGR a 302.3 IGR a 8-1 Depok : Khalifah Mediatama, 2017 Sosiologi PUPAD 29.749/B/DPK/2018 29.750/B/DPK/2018