Comprehensive study of electronic polarizability and band gap of B2O3–Bi2O3–ZnO–SiO2 glass network oleh Iskandar Shahrim Mustafa, Nur Ain Nabilah Razali, Nurul Zahirah Noor Azman, Nor Zakiah Yahaya, Muhammad Zulhafiz Mohamad Zaini, Nur Lina Rusli, Muhammad Bakhsh Nizamani, Halimah Mohamed Kamari