//ini mas. intinya main di $jumlah_page untuk nentuin start fetching bukunya

else if((substr($doto, -1)) == 5)
	{
	 $sqlpok = mysqli_query($koneksi, "SELECT COUNT(id) AS jumlah FROM data_buku2 WHERE kategori = 'komp'");
	$get_jumlah = mysqli_fetch_assoc($sqlpok);

		switch($doto){
			//=====NEXT=====
			case 'next5':
			if (($tron+9) >= ($get_jumlah['jumlah'])){
			apiRequest("AnswerCallbackQuery", array('callback_query_id' => $lost, 'text' => 'kamu berada di akhir halaman'));
			$jumlah_page = (floor($get_jumlah['jumlah'] / 10)) * 10;
			} else {
				$jumlah_page = $tron+9;
			}
			break;
			//=====LAST=====
			case 'last5':
			if(($tron+9) >= ($get_jumlah['jumlah'])){
				apiRequest("AnswerCallbackQuery", array('callback_query_id' => $lost, 'text' => 'kamu berada di akhir halaman'));
				$jumlah_page = (floor($get_jumlah['jumlah'] / 10)) * 10;
			}
			else {
			$jumlah_page = (floor($get_jumlah['jumlah'] / 10)) * 10;
			}
			break;
			//====FIRST=====
			case 'first5':
			if($tron == 1){
				apiRequest("AnswerCallbackQuery", array('callback_query_id' => $lost, 'text' => 'kamu berada di awal halaman'));
				$jumlah_page = 0;
			}else{
			$jumlah_page = 0;
			}
			break;
			//====PREVIOUS====
			case 'previous5':
			if($tron == 1){
				apiRequest("AnswerCallbackQuery", array('callback_query_id' => $lost, 'text' => 'kamu berada di awal halaman'));
				$jumlah_page = 0;
			}else{
				$jumlah_page = $tron-11;
			}
			break;
		}

		$sql = mysqli_query($koneksi, "SELECT * FROM data_buku2 WHERE kategori = 'komp' ORDER BY pengarang ASC LIMIT $jumlah_page,10");
        $isi = '';
		$noe = $jumlah_page + 1; // Untuk penomoran tabel
			while($data = mysqli_fetch_assoc($sql)){
			$isi .= $noe++.'. {'.$data['id_buku'].'} '.$data['judul_buku'].'-'.$data['pengarang'].' ('.$data['type_file'].'-'.substr($data['bahasa'],0,4).')'.chr(10);
			}

		apiRequestJson("editMessageText", array('chat_id' => $chat_id2, 'message_id' => $message_id2, 'text' => $isi,
		'reply_markup' => array(
			'inline_keyboard' => array(array(array("text" => "First", 'callback_data' => 'first5'),
											 array("text" => "\xE2\x97\x80", 'callback_data' => 'previous5'),
											 array("text" => "\xE2\x96\xB6", 'callback_data' => 'next5'),
											 array("text" => "Last", 'callback_data' => 'last5'))))));
	}