DescriptionThailand road sign บ-31-1.svg English: Checkpoint. Date 2 August 2023 Source Thai Ministry of Transport - Department of Rural Roads Author Government...
DescriptionTH road sign บ-31 (old).svg English: Checkpoint. ไทย: หยุดตรวจ Date 20 November 2017 Source Thai Ministry of Transport - Department of Rural Roads Author...
DescriptionThailand road sign บ-31.svg English: Checkpoint. ไทย: หยุดตรวจ Date 8 November 2017 Source Thai Ministry of Transport - Department of Rural Roads Author...
https://commons.wikimedia.org/wiki/user:So_Monggo author name string: So Monggo Wikimedia username: So Monggo determination method or standard: SHA-1...
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