diff --git a/publications.php b/publications.php
index 50225c8..e99eb82 100644
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+++ b/publications.php
@@ -71,6 +71,12 @@ Menggunakan Block Cipher Rivest Code-6 ke Dalam Citra (Andrew Chandra, Willy Sud
 1693-7279).</a></li>
     <li><a href="https://ti.ukdw.ac.id/ojs/index.php/informatika/article/view/425/pdf">Program Video Call Berbasis Peer to Peer Menggunakan Protokol RTMFP 
 (Nathaniel Gunawan, Gani Indriyanta, Willy Sudiarto Raharjo, Informatika Vol 11 No 1, April 2015, ISSN: 1693-7279).</a></li>
+    <li><a href="http://ira.lib.polyu.edu.hk/handle/10397/59471">Challenges to develop a sustainable university-community partnership in an international service learning project
+(Joseph Lam, Geoffrey Shea, Paulus Bawole, Willy Sudiarto Raharjo, Conference on Service-Learning in Chinese Societies, Service-Learning Centre, Chung Chi College, the
+Chinese University of Hong Kong, Hong Kong, 22 Mei 2015).</a></li>
+    <li><a href="http://fujensl.conf.tw/site/page.aspx?pid=161&sid=1033&lang=en">Learning Outcomes from International Service Learning (Joseph Lam, Geoffrey Shea, Paulus
+Bawole, Willy Sudiarto Raharjo, The 5th Asia-Pacific Regional Conference on Service-Learning: Love Journey: Community Engagement through Service-Learning, Fu Jen Catholic University,
+Taiwan, 28 Mei 2015).</a></li>
     <li><a href="https://ti.ukdw.ac.id/ojs/index.php/informatika/article/view/448/pdf">Implementasi Permainan Flow Pada Pembangunan Sistem CAPTCHA (Indra Setiawan, 
 Willy Sudiarto Raharjo, Budi Susanto, Informatika Vol 11 No 2, Oktober 2015, ISSN: 1693-7279).</a></li>
     <li><a href="http://library.umn.ac.id/jurnal/public/uploads/papers/pdf/ebb31df6ff4e135cb29602302ae4b8fc.pdf">Implementasi Zero Knowledge Proof Menggunakan Protokol