After the merging of political parties into groups , the nationalist group including Parkindo was fused into the Indonesian Democratic Party on 10 January 1973 . Sabam signed the Fusion Declaration representing Parkindo . The result of the fusion was broadcast widely by the media , and three days later , the Central Leadership Council of the Indonesian Democratic Party was formed , with Sabam elected as the General Secretary of the party . The formation of the Central Leadership Council was ratified at the First Congress of the Indonesian Democratic Party on 11-13 April 1976
First Congress of the Indonesian Democratic Party
1st Congress of the Indonesian Democratic Party
Sabam Sirait