In 1959, following the introduction of soft-authoritarian rule through Guided Democracy, the Indonesian government and military began placing restrictions on alien residence and trade. These regulations culminated in the enactment of Presidential Regulation 10 in November 1959, banning retail services by non-indigenous persons in rural areas. Ethnic Chinese, Arab, and Dutch businessmen were specifically targeted during its enforcement to provide a more favorable market for indigenous businesses. This move was met with protests from the Chinese government and some circles of Indonesian society. Javanese writer Pramoedya Ananta Toer later criticized the policies in his 1961 book "Hoakiau di Indonesia". An integrationist movement, led by the Chinese-Indonesian organisation Baperki (""), began to gather interest in 1963, including that of President Sukarno. However, a series of attacks on ethnic Chinese communities in West Java in May proved it to be short-lived, despite the government's condemnation of the violence. When Baperki was branded a communist organization in 1965 the ethnic Chinese were implicated by association; this was exacerbated in the public mind by the People's Republic of China's communism. As many as 500,000 people, the majority of them Javanese Abangan Muslims and Balinese Indonesians but including a minority of several thousand ethnic Chinese, were killed in the anti-communist purge which followed the failed coup d'état, suspected as being communist-led, on 30 September 1965.