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Family name Phetsom (Phetsom , เพชรสม ) , worldwide, is a rare last name. The surname Phetsom is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
เพ็ชรสม
Sawad, Ratchanon, Teeranai, Thimonrat, Jutamart, Phimwadi, Phimwadee, Saowanee, Maneerat, Jenjira, Jakkrit, Jaruwan, Phumpat, Komsorn, Sirirat, Bunma, Worawaran, and Prapassorn