Surat RM Thahir, Resolution of the Court of Justice, 13 Muharram 1327 (4/2/1909). Watermark: KARADJAAN LINGGA RIOUW.
"The original materials are currently held at the Balai Maklumat Library, Penyengat.".
"The original materials are currently held at the Balai Maklumat Kebudayaan Melayu Riau, under the management of Raja Malik.".
Supported by