Ḥevrat ha-ʻovdim (Israel), Histadrut ha-kelalit shel ha-ʻovdim ha-ʻIvrim be-Erets-Yiśraʼel. Merkaz le-tarbut ule-ḥinukh, Histadrut ha-kelalit shel ha-ʻovdim ha-ʻIvrim be-Erets-Yiśraʼel. Ṿaʻad ha-poʻel