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Elisabeth Sri Pujiastuti
Universitas HKBP Nommensen
Indonesia
Juli Ritha Tarigan
Universitas HKBP Nommensen
Yanto Raya Tampubolon
Universitas HKBP Nommensen
Ferlist Rio Siahaan
Universitas HKBP Nommensen
Susana Tabah Trina Sumihar
Universitas HKBP Nommensen