Environmental analysis of quasi-static electric field changes of tropical lightning flashes by Mohamad Sabri, Muhammad Haziq, Ahmad, Mohd. Riduan, Mohd. Esa, Mona Riza, Periannan, Dinesh, Seah, Boon York, Mohammad, Sulaiman Ali, Abdul-Malek, Zulkurnain, Lu, Gaopeng, Zhang, Hongbo, Yusop, Norbayah, Cooray, Vernon, Al-Kahtani, Ammar Ahmed, Ab. Kadir, Mohamad Zainal Abidin, Mohd. Hatta, Norhasliza, Abdullah, Noradlina, Yahaya, Mohd. Pauzi