Items where Author is "Hafni, Syafrida"
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Book
Ramadhani, Sri and Zainuddin and Nasrun and Harahap, Dahrul Aman and Febriani, Budi and Hafni, Syafrida (2023) Manajemen Peace Education Di Sekolah. UMSU Press, Medan. ISBN ISBN : 978-623-408-383-5 ; E-ISBN : 978-623-408-388-0 (PDF)