/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: antoniritonga9 https://cdn.slidesharecdn.com/profile-photo-antoniritonga9-48x48.jpg?cb=1523529725 Antoni Ritonga, S.Pd Guru SMP Negeri 1 Perbaungan Kabupaten Serdang Bedagai Sumatera Utara. Alumni IKIP Bandung, UMN AW, dan UNIVERSITAS SYIAH KUALA