Indonesian political parties spent upwards of Rp 300 trillion ($33 billion) from 2007 to 2010, a member of the Supreme Audit Agency (BPK) said on Monday.

The source of funding remains unclear. Rizal Djalil, a member of the BPK, said that funding was likely taken from the government's social aid fund managed by regional heads. "The report per Dec. 31, 2010 is Rp 300 trillion. This is irrational," Rizal said in a seminar as quoted by Detik.com.

The figure is large compared to revenue received by political parties. The political party law limits individual donations per year to Rp 1 billion and company donations to Rp 7.5 billion.

Rizal said the government should issue clear regulations so the BPK can track and monitor funding sources. "The funding sources should be clearly monitored," Rizal said. "Political parties now can secretly use the state budget."

He said that for the sake of transparency and to prevent parties from secretly stealing from the state budget, the government should not limit donations from the private sector or from individuals.