Specific sound frequency improves intrinsic water efficiency in rice leaf by imparting changes in stomatal dimensions by Jusoh, Mashitah, Ramlee, Shairul Izan, Pydi, Faiznur Iffah, Mazlan, Nur Aishah, Berahim, Zulkarami, Muhamad Mujab, Azzami Adam, Sinniah, Uma Rani, Yeoh, Joanne Pei Sze, Khalid, Khalisanni, Yaapar, Muhammad Nazmin