na INLIS000000000040404 20240610103159 0010-0421000470 JIPDSUR Cyber bullying / Widaningsih Cet.1 x, 80 hlm. ; 23 cm. Bibliografi: hlm. 74-76 CB-D13/2020-1092 978-623-6562-10-9 Ind CB-D13/2020-1092 CB-D13/2020-1092 Widaningsih 1981- Malang : Polinema Press, 2020 Indeks Abd.Muqit JIPDSUR 01031/DPK/D/2021 01032/DPK/D/2021