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2. 2) Silaban, F.: Idealisme Arsitektur dan Kenyataannya di Indonesia (Architectural Idealism and the Reality in Indonesia), in Budihardjo, E. (ed).: Menuju Arsitektur Indonesia (Towards Indonesian Architecture), the 1st edition, Alumni, pp.75-89, 1996 (In Indonesian)
3. 3) Dahniar and Sendai, S.: The Formation of the Notion on “Open Veranda” (“Emper Terbuka”) by Friedrich Silaban, Journal of Architecture and Planning (Transaction of AIJ), Vol. 84, No. 766, pp.2647-2657, 2019.12
4. 4) modern Asian Architecture Network Indonesia.: Rumah Silaban (Silaban’s House), mAAN Indonesia publishing, 2008, online http://www.konteks.org/buku-digital-rumah-silaban-dirilis (accessed 2016.12.11)
5. 5) Sendai, S. and Dahniar.: Formation Process of the “Open Veranda” (“Emper Terbuka”) in the Realization of Residence of Lie A Hong (1968-1969) by Friedrich Silaban, AIJ Journal of Technology and Design, Vol. 25, No.61, pp.1339-1344, 2019.10 千代 章一郎, ダフニアル: フリードリッヒ・シラバンによるリー・ア・ホン（1968-1969）邸の設計における「オープンベランダ」（「エンペル・テルブカ」）の形成過程,日本建築学会技術報告集,第 25 巻, 第 61 号, pp.1339-1344, 2019.10