�ݺ�ߣ

David Siburian

2 �ݺ�ߣShares 147 Followers 159 Followings

2 �ݺ�ߣShares 147 Followers 159 Followings

Personal Information

Organization / Workplace

Liverpool ID

Occupation

geologist

Industry

Marine / Shipbuilding

Website

geologimudaindonesia

About

semua indah pada waktu nya

Presentations(2)��

mineralogi presentasi

��

kepemimpinan

��