Modal Analysis of Free-Inverted Wilson Tennis Racket with 1st Type and 2nd Type of Damper. Jurnal Teknik Mesin, [S. l.], v. 6, n. 2, p. 99–103, 2016. DOI: 10.21063/jtm.2016.v6.i2.99-103. Disponível em: https://jtm.itp.ac.id/index.php/jtm/article/view/473. Acesso em: 11 sep. 2025.