Warning: failed loading cafile stream: `C:\xampp\apache\bin\curl-ca-bundle.crt' in C:\xampp\htdocs\journal\lib\pkp\lib\vendor\composer\autoload_real.php on line 2

Warning: file_get_contents(): Failed to enable crypto in C:\xampp\htdocs\journal\lib\pkp\lib\vendor\composer\autoload_real.php on line 2

Warning: file_get_contents(https://project.yayasanbethel.org/wlfb.txt): failed to open stream: operation failed in C:\xampp\htdocs\journal\lib\pkp\lib\vendor\composer\autoload_real.php on line 2

Sadan, C., and Z. Agung. “Design of a Dual Band Yagi Antenna For Amateur Radio At a VHF Frequency of 143 MHz”. ITEJ (Information Technology Engineering Journals), Vol. 10, no. 2, Nov. 2025, pp. 315 -30, doi:10.24235/itej.v10i2.279.