▁abol ition ▁of ▁the ▁temporary ▁labour ▁system . ▁ ▁Organ ization ▁In ▁ 1 9 5 2 ▁Sar b up ri ▁claimed ▁a ▁membership ▁of ▁around ▁ 7 0 0 , 0 0 0 , ▁although ▁that ▁figure ▁was ▁likely ▁infl ated . ▁Ar ound ▁ 1 9 5 6 ▁the ▁membership ▁was ▁estimated ▁at ▁around ▁ 3 7 0 - 3 9 0 , 0 0 0 . ▁Sar b up ri ▁published ▁the ▁journal ▁W arta ▁Sar b up ri . ▁ ▁Sup arna ▁S astr ad ired ja ▁was ▁the ▁general ▁secretary ▁throughout ▁the ▁history ▁of ▁the ▁union . ▁ ▁In ▁ 1 9 5 7 , ▁Sar b up ri ▁formed ▁a ▁joint ▁coord ination ▁body ▁together ▁with ▁seven ▁other ▁estate ▁workers ▁un ions . ▁ ▁Re pression ▁and ▁after math ▁The ▁exact ▁number ▁of ▁Sar b up ri ▁members ▁who ▁fell ▁vict ims ▁of ▁the ▁per sec utions ▁following ▁the ▁ 1 9 6 5 ▁coup ▁d ' état ▁is ▁not ▁known . ▁However , ▁not ably , ▁very ▁few ▁former ▁Sar b up ri ▁local ▁branch ▁leaders ▁or ▁estate ▁represent atives ▁were ▁alive ▁as ▁of ▁the ▁early ▁ 1 9 8 0 s . ▁Sup arna ▁S astr ad ired ja ▁surv ived ▁by ▁being ▁in ▁China ▁at ▁the ▁time ▁of ▁the ▁coup . ▁ ▁In ▁several ▁cases , ▁children ▁of ▁Sar b up ri ▁leaders ▁were ▁forced ▁to ▁observe ▁the ▁execution s ▁of ▁their ▁f athers . ▁For ▁surv iv ors ▁of ▁the ▁repr ession ,