How to Display ACF Relationship Custom Field as Link to Specific Custom Post?

Finaly, I make this working.

I put this in my template:

<?php $contacts = get_field('list_supplier'); ?>
<?php if( $contacts ): ?>
    <?php foreach( $contacts as $contact ): ?>
        <a href="https://wordpress.stackexchange.com/questions/118817/<?php echo get_permalink( $contact->ID ); ?>" target="blank"><?php echo get_the_title( $contact->ID ); ?></a>
    <?php endforeach; ?>
<?php endif; ?>

And here is the filter I am using

<?php
function my_acf_load_field( $field )
{
    $field['choices'] = array(
        'custom' => 'My Custom Choice'
    );
    return $field;
}

// acf/load_field/key={$field_key} - filter for a specific field based on it's name
add_filter('acf/load_field/key=field_525c37d91ae8d', 'my_acf_load_field');
?>