Stacia Edina Johanna
@p031608
Indonesia, Surabaya
Joined Apr 2016
World Rank: #1006 (27.2 points)
Institution: SMA PETRA 3 SURABAYA
Activity over the last year
Effectiveness
- Problems solved
- 30
- Solutions submitted
- 164
Indonesia, Surabaya
Joined Apr 2016
World Rank: #1006 (27.2 points)
Institution: SMA PETRA 3 SURABAYA