Indonesia12 Kemenkes RI3 Direktorat Pembinaan PAUD3 Hardman, Joel G.3 Dahlan, M. Sopiyudin3 Shargel, Leon ; Wu-Pong, Susanna ; Andrew B.C. Yu2 Cunningham, F.Gary...[et.al]2 Soekanto, Soerjono2 Huda, Ni'matul2 Santrock, John W.2 Hazra, Kanali lal2 Sanyoto, Aris2 Sukirno, Sadono2 Barthos, Basir2 Japaries, Willie2 Gantzer, Hugh.2 Prawiradilaga, Dewi Salma2 Hery2 Ta’adi2 Kasmir2