Tjoe Bou San

[2] He also tried to launch another daily newspaper in Batavia called Bin Seng, with himself as editor under the pen name of Oen Tjip Tiong, but it did not last long.

He also campaigned against Indië Weerbaar, a proposal for a standing native army in the Indies which was strongly opposed by the Sarekat Islam and other Indonesian nationalist groups as well.

Tjoe eventually published some of Fromberg's writings, as well as his own criticism, in Pergerakan Tionghoa di Hindia Olanda dan Mr. P.H.

His political beliefs were featured prominently in the 1924 book Doea kepala batoe (Malay: Two heads of stone) by Kwee Hing Tjiat, a previous editor of Sin Po (until 1918) and close ally of Tjoe's.

[3] The book featured a debate between Tjoe and Yap Hong Tjoen, a member of the Chung Hwa Hui, who believed that Chinese should be focused on Dutch colonial politics.