Penggunaan Bahasa Belanda sebagai bahasa pilihan dalam ibadah di Gereja GPIB Immanuel Gambir, Jakarta = The Use of Dutch as a language of choice in worship at GPIB Immanuel Church Gambir, Jakarta

Akustik Arsitektural Gereja. Studi Kasus: Perbandingan Akustik Antara Katedral Santa Maria Pelindung Diangkat ke Surga dan Gereja Immanuel. = Architectural Acoustics of Church. Study Case: Acoustics Comparison Between St. Mary of The Assumption Cathedral and St. Emmanuel Church.

Evaluasi Kualitas Akustik Bangunan Gereja (Studi Kasus: Gereja HKBP TMII) = Evaluation of Room Acoustic Quality in Church (Case Study: HKBP TMII Church)

Makna Simbolik Ragam Hias GPIB Immanuel (Awal Abad ke-19) di Jakarta Pusat = The Symbolic Meaning of the GPIB Immanuel Decorations (Early 19th Century) in Central Jakarta

Perempuan kristen dan gereja menyikapi kekerasan dalam rumah tangga (studi kasus beberapa perempuan kristen protestan minahasa di Gereja Protestan Indonesia Bagian Barat (GPIB) di DKI Jakarta) = Christian women and church dealing with domestic Violence (Case study in Few Minahasan Presbyterian Church Women in GPIB DKI Jakarta)