According to a memoir of his childhood , which Ruslan wrote in the 1970s , his mother was also a strong Javanese nationalist .
It was from nationalist that Ruslan first learned about Dutch colonial rule and the possibility of independence .
According to a memoir of his childhood , which Ruslan wrote in the 1970s , his mother was also a strong Javanese nationalist , and it was from her that he first learned about Dutch colonial rule and the possibility of independence .