Check this https://nationalgeographic.grid.id/read/132075539/tan-pek-hau-sang-kungfu-master-legendaris-asal-kabupaten-tegal
I think because it is traditional Kungfu, many practitioner are old people and they don't know too much about internet, but if you want to find them offline, here is one of the track: https://nationalgeographic.grid.id/read/132075539/tan-pek-hau-sang-kungfu-master-legendaris-asal-kabupaten-tegal
