Kaewjai Thepsuthammarat. 2011. Play Materials and Cognitive Development among Thai Children at One Year of Age. Field of Study Public Health, Khon Kaen University; DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/KKU.the.2011.19
Kaewjai Thepsuthammarat. (2011) Play Materials and Cognitive Development among Thai Children at One Year of Age . Khon Kaen University/Khon Kaen. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/KKU.the.2011.19
Kaewjai Thepsuthammarat. Play Materials and Cognitive Development among Thai Children at One Year of Age. . Khon Kaen:Khon Kaen University, 2011. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/KKU.the.2011.19
Kaewjai Thepsuthammarat. (2011) Play Materials and Cognitive Development among Thai Children at One Year of Age . Khon Kaen University/Khon Kaen. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/KKU.the.2011.19