Where is mini registration php files

<?php if( $this->config->get( 'registrations.enabled' ) ){ ?>

		<div class="col-md-6 register-column">

				<form style="padding-left: 90px;padding-right: 90px;" method="post" action="<?php echo JRoute::_( 'index.php' );?>" data-registermini-form>

					<div class="register-wrap <?php echo empty( $fields ) ? ' is-empty' : '';?>">

						<h3><?php echo JText::_( 'COM_EASYSOCIAL_LOGIN_NO_ACCOUNT' );?></h3>

						<p class="center mb-20">

							<?php echo JText::_( 'COM_EASYSOCIAL_LOGIN_REGISTER_NOW' );?>

						</p>





						<?php if( !empty( $fields ) ) { ?>

							<?php foreach( $fields as $field ) { ?>

								<div class="register-field" data-registermini-fields-item><?php echo $field->output; ?></div>

							<?php } ?>

						<?php } ?>



						<div class="clearfix">

							<button class="btn btn-es-primary btn-sm btn-register" type="button" data-registermini-submit><?php echo JText::_( 'COM_EASYSOCIAL_LOGIN_REGISTER_NOW_BUTTON' );?></button>

						</div>