Rafidah Abd Malik, <br/><br/>
Komunikasi HF :  hubungan ionosfera dan matahari / 
Rafidah Abd Malik, Mardina Abdullah, Sabirin Abdullah. 
 - 198 pages :  illustrations ;  23 cm. 
<br/><br/>Rujukan: mukasurat [179]-191. 
<br/><br/><label>ISBN: </label>9789672513575  Hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio frequency.<br/>Radio waves.<br/>Ionospheric radio wave absorption.