Prachum phongsāwadān phāk thī 50 r̄ưang tamnān m̄ưang Ran̨ōng - Damrongrāchānuphāp, Prince, son of Mongkut, King of Siam, 1862-1943 (Sūn Watthanatham Čhangwat Ran̨ōng, Rōngrīan Phichairattanākhān Čhangwat Ran̨ōng, 1999)