diff --git a/latex/thesis.cls b/latex/thesis.cls
index b5d2787..18b5ec1 100644
--- a/latex/thesis.cls
+++ b/latex/thesis.cls
@@ -53,25 +53,36 @@
 \fancyfoot[C]{\thepage}
 
 % Chapter formatting
-\titleformat{\chapter}[hang]{\Huge\bfseries}{\thechapter.}{1em}{}
-\titlespacing*{\chapter}{0pt}{-10pt}{20pt}
+\titleformat{\chapter}[display]
+  {\bfseries\Large\centering}
+  {BAB~\Roman{chapter}} % << display format
+  {1ex}
+  {\MakeUppercase}
+
+% Ensure chapter reference in TOC matches
+\renewcommand{\cftchappresnum}{BAB~}
+\renewcommand{\cftchapaftersnum}{\quad}
+
+% \titlespacing*{\chapter}{0pt}{-10pt}{20pt}
 
 % Redefine \maketitle
 \renewcommand{\maketitle}{\input{frontmatter/maketitle}}
 
 % Chapter & Section format
 \renewcommand{\cftchapfont}{\bfseries\MakeUppercase}
-\renewcommand{\cftsecfont}{}
-\renewcommand{\cftsubsecfont}{\itshape}
+% \renewcommand{\cftsecfont}{}
+% \renewcommand{\cftsubsecfont}{\itshape}
+% \renewcommand{\thesection}{\textup{\Roman{chapter}}.\arabic{section}}
+
 
 % Dot leaders, spacing, indentation
-\setlength{\cftbeforechapskip}{1em}
+\setlength{\cftbeforechapskip}{0em}
 \setlength{\cftchapindent}{0pt}
-\setlength{\cftsecindent}{1.5em}
+\setlength{\cftsecindent}{0em}
 \setlength{\cftsubsecindent}{3em}
-\setlength{\cftchapnumwidth}{3em}
-\setlength{\cftsecnumwidth}{3.5em}
-\setlength{\cftsubsecnumwidth}{4.5em}
+\setlength{\cftchapnumwidth}{4em}
+\setlength{\cftsecnumwidth}{1.5em}
+\setlength{\cftsubsecnumwidth}{2.5em}
 
 % Title styling
 \renewcommand{\contentsname}{\hfill\bfseries\normalsize DAFTAR ISI\hfill}