SINTHUSARN, A.; SINCHAROENPOKAI, S.; PENGPROM, K. An innovative of the portable electric tjanting pen. Bulletin of Applied Sciences, Bangkok, Thailand, v. 15, n. 1, p. 10–15, 2026. DOI: 10.60136/bas.v15.2026.3714. Disponível em: https://ph03.tci-thaijo.org/index.php/BAS/article/view/3714. Acesso em: 2 sep. 2026.