THEORETICAL ANALYSIS OF SQUARE STRUCTURED PHOTONIC CRYSTAL FIBRE USING THE GOLDEN RATIO. ASEAN Engineering Journal, [S. l.], v. 12, n. 4, p. 131–136, 2022. DOI: 10.11113/aej.v12.18008. Disponível em: https://journals.utm.my/aej/article/view/18008.. Acesso em: 13 apr. 2025.