I Putu Suyasa Ariputra; Encep Syarief Nurdin; Yadi Ruyadi; Kadek Aria Prima Dewi PF; Bunyamin Maftuh; Juntika Nurihsan; Momod Abdul Somad; Mupid Hidayat; Warlim. CHILDREN’S LETTER WRITING FOR MOTHERS AS CHARACTER EDUCATION REINFORCEMENT: A BRONFENBRENNER PERSPECTIVE . P. W  Jurnal Pendidikan Anak Usia Dini 2026, 11, 107-127.