aat seven years old, Sudirman attend Native School (Hollandsch Inlandsche School), but he moved to Taman Siswa School, a school founded by Ki Hajar Dewantara. Then proceeded secondary schools in Wirotomo. Then he proceeded to HIK (school teacher) Muhammadiyah, Solo. After Cokrosunaryo retired as district head at the end of 1916, the family lived to Manggisan Sudirman, Cilacap. He helped establish a branch Hizboel Wathan, a scouting organization belonging Putra Muhammadiyah, then he became a teacher at his school in Cilacap Muhammadiyah.
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