Link tham khảo:
http://www.vinabook.com/tu-sach-khoi-nguon-tri-tue-eq-iq-luyen-tri-thong-minh-cho-tre-tu-2-6-tuoi-tron-m11i35322.html
Link tham khảo: http://www.meta.vn/sach/sach-thieu-nhi-c202/truyen-tranh-c207/bo-sach-tro-choi-iq-danh-cho-be-5-cuon-p19387.aspx
http://dinhtibooks.com.vn/index.php?c=pge_bookdetail&m=guest&id=488
Link tham khảo: http://www.vinabook.com/de-moi-gia-dinh-la-vuon-uom-thien-tai-bo-me-tot-nuoi-con-tot-m11i25823.html