1.
Sudarno S, Rochayani M. Method of Calculating Area and Arc Length of Sine and Cosine Functions in Polar Coordinates. ijmcr [Internet]. 2Oct.2025 [cited 19May2026];13(10):5693-7. Available from: https://www.ijmcr.everant.org/index.php/ijmcr/article/view/1061