BALVEER KUMAR. Design, Synthesis and Photophysical Studies of Novel Dye-Based Donor–Acceptor Systems for Selective Detection of Cu²⁺ Ions. International Journal of Engineering, Science and Humanities, [S. l.], v. 9, n. 4, p. 84–109, 2019. Disponível em: https://www.ijesh.com/index.php/j/article/view/26. Acesso em: 25 sep. 2025.