diff --git a/publications.php b/publications.php
index f8f3236..90d7734 100644
--- a/publications.php
+++ b/publications.php
@@ -100,8 +100,9 @@ Pengamanan Dokumen Digital Rahasia (Willy Sudiarto Raharjo, Antonius Rachmat C.,
 2018, ISSN: 2477-5452).</a></li>
     <li><a href="http://thesai.org/DOwnloads/Volume9No12/Paper_53-Integration_of_REST_based_Web_Service.pdf">Integration of REST-Based Web Service and Browser Extension for Instagram Spam Detection (Antonius Rachmat C., Willy Sudiarto Raharjo, Yuan Lukito, International Journal of Advanced Computer Science and Applications (IJACSA), Volume 9, Issue 12 2018, ISSN: 2158-107X).</a></li>
     <li><a href="http://jurnal.untan.ac.id/index.php/jepin/article/view/33010">Firefox Extension untuk Klasifikasi Komentar Spam pada Instagram Berbasis REST Services (Antonius Rachmat Chrismanto, Willy Sudiarto Raharjo, Yuan Lukito (Jurnal Edukasi dan Penelitian Informatika (JEPIN) Vol 5, No 2 2019, ISSN: 2548-9364).</a></li>
-	<li><a href="http://prosiding.sendimas.org/2019/pdf/331.pdf">Pemanfaatan G Suite for Education untuk Meningkatkan Efektivitas Belajar Mengajar dan Kapasitas Guru 
+    <li><a href="http://prosiding.sendimas.org/2019/pdf/331.pdf">Pemanfaatan G Suite for Education untuk Meningkatkan Efektivitas Belajar Mengajar dan Kapasitas Guru 
 SMA (Willy Sudiarto Raharjo, Danny Sebastian, Antonius Rachmat Chrismanto, Laurentius Kuncoro Probo Saputra (SENDIMAS 2019, September, 2019).</a></li>
+    <li><a href="https://ieeexplore.ieee.org/document/8981844">Implementation of Password-based Key Derivation Function for Authentication Scheme in Patrolling System (Laurentius Kuncoro Probo Saputra, Willy Sudiarto Raharjo, 2019 5th International Conference on New Media Studies (CONMEDIA), 9-11 Oct. 2019. E-ISBN: 978-1-7281-0726-4)</a></li>
   </ol>
 </article>
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