Widiyanto, Dodi, & R. Rijanta.
" LINGKUNGAN KOTA LAYAK ANAK (CHILD-FRIENDLY CITY) BERDASARKAN PERSEPSI ORANGTUA DI KOTA YOGYAKARTA." <em>Bumi Lestari</em> [Online], 12.2 (2012): n. pag. Web.  1 Sep. 2024