Towards an effective refactoring taxonomy for sustainable software systems - Abdullah Almogahed; Hairulnizam Mahdin; Said Badreddine; Mazni Omar; Abdulwadood Alawadhi; Samera Obaid Barraood; Manal Othman; Shazlyn Milleana Shaharudin; Siti Salwani Yaacob (PLoS ONE, 2026)