Yaser Ahmad Alhasan, Florentin Smarandache, Mohamed Elghazali Ali Mohieldin Mohamed, & Raja Abdullah Abdulfatah. (2024). The indefinite integrals of refined neutrosophic trigonometric functions . Neutrosophic Sets and Systems, 70, 37-44. https://fs.unm.edu/nss8/index.php/111/article/view/4747