Ce, W. and Alam, G.F. 2011. Metodologi Pemecahan Masalah Analisis dan Evaluasi Open Source untuk Perusahaan: Sample Case E-Learning System. ComTech: Computer, Mathematics and Engineering Applications. 2, 2 (Dec. 2011), 1263-1273. DOI:https://doi.org/10.21512/comtech.v2i2.2942.