In 1947 in Yogyakarta, Pak Dirdjo appointed Civil Servants in the Ministry of Education and Culture, Section of Pencak Silat, which is headed by Mochammad Djoemali. Based on his mission to develop pencak silat, Pak Dirdjo open pencak silat courses through official to the public. He also asked to teach at the Himpunan Siswa Budaya, a student activity unit in UGM (Universitas Gadjah Mada). His students are UGM students at the beginning of the establishment of the campus. Pak Dirdjo also opened a pencak silat course in his office. Some Pak Dirdjo's students at that time is Ir. Dalmono, Prof. Dr. Bambang Suyono Hadi and R.M. Moediono Probokusumo who in the family of Perisai Diri also known as Mas Wuk.