Make the following related articles Post

1. Login to Blogger
2. Click the Layout
3. Click the Edit HTML tab
4. Click the Expand Template Widgets
5. Then Find the code like this:
   <data:post.body/> or press Ctrl + F for quick search:
  6. Copy / paste the following code after the code<data:post.body/>

<b:if cond='data:blog.pageType == &quot;item&quot;'> <strong>Artikel Terkait di Bawah posting</strong> <div class='rbbox'> <div style='margin:0; padding:10px;height:200px;overflow:auto;border:1px solid #ccc;'> <div id='ardi33'/> <script type='text/javascript'> var homeUrl3 = &quot;<data:blog.homepageUrl/>&quot;; var maxNumberOfPostsPerLabel = 4; var maxNumberOfLabels = 10; maxNumberOfPostsPerLabel = 100; maxNumberOfLabels = 3; function listEntries10(json) { var ul = document.createElement(&#39;ul&#39;); var maxPosts = (json.feed.entry.length &lt;= maxNumberOfPostsPerLabel) ? json.feed.entry.length : maxNumberOfPostsPerLabel; for (var i = 0; i &lt; maxPosts; i++) { var entry = json.feed.entry[i]; var alturl; for (var k = 0; k &lt; entry.link.length; k++) { if (entry.link[k].rel == &#39;alternate&#39;) { alturl = entry.link[k].href; break; } } var li = document.createElement(&#39;li&#39;); var a = document.createElement(&#39;a&#39;); a.href = alturl; if(a.href!=location.href) { var txt = document.createTextNode(entry.title.$t); a.appendChild(txt); li.appendChild(a); ul.appendChild(li); } } for (var l = 0; l &lt; json.feed.link.length; l++) { if (json.feed.link[l].rel == &#39;alternate&#39;) { var raw = json.feed.link[l].href; var label = raw.substr(homeUrl3.length+13); var k; for (k=0; k&lt;20; k++) label = label.replace(&quot;%20&quot;, &quot; &quot;); var txt = document.createTextNode(label); var h = document.createElement(&#39;b&#39;); h.appendChild(txt); var div1 = document.createElement(&#39;div&#39;); div1.appendChild(h); div1.appendChild(ul); document.getElementById(&#39;ardi33&#39;).appendChild(div1); } } } function search10(query, label) { var script = document.createElement(&#39;script&#39;); script.setAttribute(&#39;src&#39;, query + &#39;feeds/posts/default/-/&#39; + label + &#39;?alt=json-in-script&amp;callback=listEntries10&#39;); script.setAttribute(&#39;type&#39;, &#39;text/javascript&#39;); document.documentElement.firstChild.appendChild(script); } var labelArray = new Array(); var numLabel = 0; <b:loop values='data:posts' var='post'> <b:loop values='data:post.labels' var='label'> textLabel = &quot;<data:label.name/>&quot;; var test = 0; for (var i = 0; i &lt; labelArray.length; i++) if (labelArray[i] == textLabel) test = 1; if (test == 0) { labelArray.push(textLabel); var maxLabels = (labelArray.length &lt;= maxNumberOfLabels) ? labelArray.length : maxNumberOfLabels; if (numLabel &lt; maxLabels) { search10(homeUrl3, textLabel); numLabel++; } } </b:loop> </b:loop> </script> </div> <script type='text/javascript'>RelPost();</script> </div> </b:if>

7. Save your template, then see the results

Hopefully useful info that I gave, do not forget the criticisms and suggestions