diff --git a/themes/lumbung-theme/layouts/partials/header.html b/themes/lumbung-theme/layouts/partials/header.html
index 3b00c2f..5ed8bbf 100644
--- a/themes/lumbung-theme/layouts/partials/header.html
+++ b/themes/lumbung-theme/layouts/partials/header.html
@@ -45,17 +45,24 @@
         <ul>
             <li><a href="/">home</a></li>
             <li><a href="/about/">about</a></li>
-            <li class="has-submenu" onclick="this.classList.toggle('opened')">harvest
+            <li><a href="/calendar/">calendar</a></li>
+            <li class="has-submenu">harvest
                 <ul class="submenu">
-                    <li><a href="/calendar/">calendar</a></li>
                     <li><a href="/tv/">tv</a></li>
                     <li><a href="/social/">social</a></li>
                     <li><a href="/pen/">pen</a></li>
-                    <li><a href="/shouts/">shouts</a></li>
                     <li><a href="/tags/lumbungkios/">kios</a></li>
                     <li><a href="/tags/lumbunggallery/">gallery</a></li>
                 </ul>
             </li>
+            <li><a href="https://books.lumbung.space">books</a></li>
+            <li class="has-submenu">ekonomi
+                <ul class="submenu">
+                    <li><a href="/tags/lumbungkios/">kios</a></li>
+                    <li><a href="/tags/lumbunggallery/">gallery</a></li>
+                </ul>
+            </li>
+            <li><a href="/shouts/">shouts</a></li>
         </ul>
     </aside>