Ray, Damaiwaty, et al. “PENDIDIKAN ANAK USIA DINI (PAUD) DI KECAMATAN PERCUT SEI TUAN”. JURNAL HANDAYANI PGSD FIP UNIMED, vol. 7, no. 1, July 2017, pp. 58-64, doi:10.24114/jh.v7i1.6575.