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            <form class="form-inline" target="_blank" action="<?php echo base_url('grafik/grafik-penjualan-tahunan') ?>" method="post">
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                  <label for="email" style="width: 100px">Tahun : </label>
                    <select name="tahun" id="tahun" class="form-control" required>
                      <option value="">Pilih Tahun</option>
                      <?php foreach ($tahun as $key): ?>
                        <option <?php if ($year == $key['thn']) {echo 'selected';}?> value="<?php echo $key['thn'] ?>"><?php echo $key['thn'] ?></option>
                      <?php endforeach?>
                    </select>
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                <button type="submit" id="btnSimpanBiaya" class="btn btn-success">LIHAT</button>
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