"Soeara Kalimantan", which Hamidhan established on 23 March 1930, was located in Banjarmasin; several other native journalists followed his lead by establishing their own publications.However, Hamidhan was imprisoned several times for his writings opposing the Dutch colonial government; this included two months in Cipinang in 1930, six weeks in Banjarmasin in 1932, and a further six months in Banjarmasin in 1936.