M. H. A. Halim, S. S. K. M. Masnan, N. K. Talib, and M. Saidin, “Sungai Batu Archaeological Complex as A Major Industrial Area for the Kedah Tua Kingdom Based on Core Drilling Data”, Kapata Arkeologi, vol. 17, no. 2, pp. 71–84, Jun. 2025.