R.KRISHNAKUMAR; D. DHAMODHARAN. Common fixed point of four mapping with contractive modulus on cone Banach space. Malaya Journal of Matematik, India, v. 5, n. 02, p. 310–320, 2017. DOI: 10.26637/mjm502/009. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/596. Acesso em: 16 jul. 2024.