gabriel billy
@gabrielsbilly
Indonesia, Surabaya
Joined Nov 2016
World Rank: #11943 (2.9 points)
Institution: SMAK St Louis 1 Surabaya
Activity over the last year
Effectiveness
- Problems solved
- 27
- Solutions submitted
- 198
Indonesia, Surabaya
Joined Nov 2016
World Rank: #11943 (2.9 points)
Institution: SMAK St Louis 1 Surabaya