MOHD ROZLAN, Nur Aqidah; CHE PA, Nasrul Fikry. A Systematic Review: Optimization of Extracts Psidium Guajava L. By Using Ultrasound-Assisted with Soxhlet Extraction in Application of Food Preservation. Progress in Engineering Application and Technology, [S. l.], v. 2, n. 1, p. 12–26, 2021. Disponível em: https://periodical.uthm.edu.my/index.php/peat/article/view/864. Acesso em: 15 aug. 2026.