WANG, Yuteng. Planimeter: A Magical Tool to Calculate Area. Highlights in Science, Engineering and Technology, [S. l.], v. 15, p. 245–251, 2022. DOI: 10.54097/hset.v15i.2641. Disponível em: https://drpress.org/ojs/index.php/HSET/article/view/2641. Acesso em: 6 jun. 2026.