C. T. F. Ruhulessin, “Workshop peningkatan spiritualitas istri yang cakap berdasarkan Amsal 31 : 10 - 31 bagi Ibu PW Jemaat GKI Syalom Pasifik Indah Klasis Porth Numbay: Workshop on enhancing the spirituality of a wife of noble character (Proverbs 31:10–31) for the Women’s Fellowship of the GKI Syalom Pasifik Indah Congregation, Porth Numbay Classis”, J. Ig., vol. 6, no. 4, pp. 250–261, Oct. 2025.