Hi, I’m Bambang Wijarnako — a training and development expert with over 30 years of experience in the mining industry. I specialize in applying technology like ChatGPT, Power BI, and Power Apps to improve workforce competency, streamline assessments, and enhance training systems.

On this Payhip store, I share ebooks, templates, and practical resources designed for managers, trainers, and professionals who want to shift from traditional methods to modern, digital solutions. Each ebook is based on real-world experience and focused on helping you work smarter and more effectively.

Feel free to explore the collection — and thank you for being part of the journey toward smarter training and better results.