Rini, S. E., T. Arsal, and P. Suhandini. “Analysis of Informal Child Education to The Beggar Family Hadipolo Village Chinatown Complex Kudus Regency”. Journal of Educational Social Studies, Vol. 7, no. 2, Sept. 2018, pp. 123-31, https://journal.unnes.ac.id/sju/index.php/jess/article/view/25501.