Postharvest Treatment with ZnO and CuO Nanoparticles Improves Fruit Quality and Shelf Life of Guava Fruit - Muhammad Shafique Khalid; Samina Khalid; Noosheen Zahid; Mehdi Maqbool; Akif Safeen; Hafiz Faiq Bakhat; Muhammad Amjad; Behzad Murtaza (Applied Fruit Science, 2025)