Saputra, Arrijal, et al. “KINERJA KOLOM KAYU HOLLOW LAMINASI PADA BERBAGAI VARIASI LUAS LUBANG: Performance of Hollow Laminated Timber Columns at Various Opening Area”. Spektrum Sipil, vol. 2, no. 2, Aug. 2017, pp. 190-03, https://www.spektrum.unram.ac.id/index.php/Spektrum/article/view/34.