Indonesian Minister for National Development Planning Armida Alisjahbana said on Tuesday that investment plays a critical role for Indonesia to reach 6.7 percent growth in 2012.

Alisjahbana told a press conference that if Indonesia wants to reach the economic growth of 6.7 percent stated last year, it needs to increase investment to 11.5 percent from 8.1 percent in 2011.

"That's because we are facing uncertainty in global situation, which forced many countries to revise down their growth forecast, including our neighboring ones such as Singapore, Thailand and the Philippines," said Alisjabana.

She said that such investment would come from the government, state owned companies, private sector and people.

She added that even though Indonesia relies more on private and foreign investment, the government holds a critical role in building infrastructures and enhance confidence.

She said that aside from investment, there are things that should be increased and improved, including people and government consumption, economic stability as well as export and import.

"Our inflation rate in 2011 was 3.79 percent, quite low. This momentum must be maintained," she said.