DDeleḳ u-meḳorot koaḥDeleḳ u-meḳorot koaḥde David ChenMateriasPower resourcesJuvenile literatureEdiciones (1)Deleḳ u-meḳorot koaḥ (1978)Yavneh · hebMás obras de David ChenHha-Ḥinukh li-ḳerat ha-meʾah ha-ʻeśrim ṿe-aḥatha-Ḥinukh li-ḳerat ha-meʾah ha-ʻeśrim ṿe-aḥatStress management and preventionTTikhnun, pituaḥ ṿe-yiśum tokhniyot limudimTikhnun, pituaḥ ṿe-yiśum tokhniyot limudim