Retraction notice to “A prediction model for the performance of solar photovoltaic-thermoelectric systems utilizing various semiconductors via optimal surrogate machine learning methods” [Eng. Sci. Technol. Int. J. 40 (2023) 101363] - Hisham Alghamdi; Chika Maduabuchi; Abdullah Albaker; Ibrahim Alatawi; Theyab R. Alsenani; Ahmed S. Alsafran; Abdulaziz Almalaq; Mohammed AlAqil; Mostafa A.H. Abdelmohimen; Mohammad Alkhedher (Engineering Science and Technology, an International Journal)